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12132231310 = 251963853849
BaseRepresentation
bin10110100110010001…
…10010100010001110
31011022111221012121101
423103020302202032
5144321322400220
65323511453314
7606435156523
oct132310624216
934274835541
1012132231310
115166367a51
12242708723a
1311b4681ac4
148313dd14a
154b019030a
hex2d323288e

12132231310 has 16 divisors (see below), whose sum is σ = 22987386000. Its totient is φ = 4597477056.

The previous prime is 12132231289. The next prime is 12132231311. The reversal of 12132231310 is 1313223121.

It is a super-2 number, since 2×121322313102 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12132231311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31926735 + ... + 31927114.

It is an arithmetic number, because the mean of its divisors is an integer number (1436711625).

Almost surely, 212132231310 is an apocalyptic number.

12132231310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12132231310 is a deficient number, since it is larger than the sum of its proper divisors (10855154690).

12132231310 is a wasteful number, since it uses less digits than its factorization.

12132231310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63853875.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12132231310 its reverse (1313223121), we get a palindrome (13445454431).

The spelling of 12132231310 in words is "twelve billion, one hundred thirty-two million, two hundred thirty-one thousand, three hundred ten".

Divisors: 1 2 5 10 19 38 95 190 63853849 127707698 319269245 638538490 1213223131 2426446262 6066115655 12132231310