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11031454331 = 82331339907
BaseRepresentation
bin10100100011000011…
…01010001001111011
31001110210121221110122
422101201222021323
5140043023014311
65022350203455
7540240546302
oct122141521173
931423557418
1011031454331
114750a71a07
12217a4b358b
13106a5bb591
1476913b439
154487040db
hex29186a27b

11031454331 has 4 divisors (see below), whose sum is σ = 11032802472. Its totient is φ = 11030106192.

The previous prime is 11031454303. The next prime is 11031454337. The reversal of 11031454331 is 13345413011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11031454331 - 226 = 10964345467 is a prime.

It is a super-2 number, since 2×110314543312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11031454331.

It is not an unprimeable number, because it can be changed into a prime (11031454337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 661721 + ... + 678186.

It is an arithmetic number, because the mean of its divisors is an integer number (2758200618).

Almost surely, 211031454331 is an apocalyptic number.

11031454331 is a deficient number, since it is larger than the sum of its proper divisors (1348141).

11031454331 is an equidigital number, since it uses as much as digits as its factorization.

11031454331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348140.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 11031454331 its reverse (13345413011), we get a palindrome (24376867342).

The spelling of 11031454331 in words is "eleven billion, thirty-one million, four hundred fifty-four thousand, three hundred thirty-one".

Divisors: 1 8233 1339907 11031454331