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11310231330 = 2325157800441
BaseRepresentation
bin10101000100010010…
…00110111100100010
31002012020012021121200
422202021012330202
5141130404400310
65110145302030
7550164244236
oct124211067442
932166167550
1011310231330
114884370222
122237934916
1310b3298398
147941885c6
15462e1e9c0
hex2a2246f22

11310231330 has 48 divisors (see below), whose sum is σ = 29593941624. Its totient is φ = 2996847360.

The previous prime is 11310231329. The next prime is 11310231337. The reversal of 11310231330 is 3313201311.

It is a happy number.

11310231330 is a `hidden beast` number, since 1 + 1 + 310 + 23 + 1 + 330 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 6708101409 + 4602129921 = 81903^2 + 67839^2 .

It is a super-2 number, since 2×113102313302 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11310231337) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 386091 + ... + 414350.

Almost surely, 211310231330 is an apocalyptic number.

11310231330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11310231330 is an abundant number, since it is smaller than the sum of its proper divisors (18283710294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11310231330 is a wasteful number, since it uses less digits than its factorization.

11310231330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800611 (or 800608 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 11310231330 its reverse (3313201311), we get a palindrome (14623432641).

The spelling of 11310231330 in words is "eleven billion, three hundred ten million, two hundred thirty-one thousand, three hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 157 314 471 785 942 1413 1570 2355 2826 4710 7065 14130 800441 1600882 2401323 4002205 4802646 7203969 8004410 12006615 14407938 24013230 36019845 72039690 125669237 251338474 377007711 628346185 754015422 1131023133 1256692370 1885038555 2262046266 3770077110 5655115665 11310231330