11525112431 has 16 divisors (see below), whose sum is σ = 13280654400. Its totient is φ = 9797131008.

The previous prime is 11525112427. The next prime is 11525112461. The reversal of 11525112431 is 13421152511.

It is not a de Polignac number, because 11525112431 - 2² = 11525112427 is a prime.

It is a super-4 number, since 4×11525112431⁴ (a number of 41 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3, 2.

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 11525112431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11525112461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 483665 + ... + 506933.

It is an arithmetic number, because the mean of its divisors is an integer number (830040900).

Almost surely, 2^11525112431 is an apocalyptic number.

11525112431 is a deficient number, since it is larger than the sum of its proper divisors (1755541969).

11525112431 is a wasteful number, since it uses less digits than its factorization.

11525112431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23858.

The product of its digits is 1200, while the sum is 26.

Adding to 11525112431 its reverse (13421152511), we get a palindrome (24946264942).

The spelling of 11525112431 in words is "eleven billion, five hundred twenty-five million, one hundred twelve thousand, four hundred thirty-one".