11512403540231 has 12 divisors (see below), whose sum is σ = 12655147481592. Its totient is φ = 10464979470000.

The previous prime is 11512403540201. The next prime is 11512403540249. The reversal of 11512403540231 is 13204530421511.

It is not a de Polignac number, because 11512403540231 - 2⁴² = 7114357029127 is a prime.

It is a super-2 number, since 2×11512403540231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11512403540201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2314160 + ... + 5327301.

It is an arithmetic number, because the mean of its divisors is an integer number (1054595623466).

Almost surely, 2^{11512403540231} is an apocalyptic number.

11512403540231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11512403540231 is a deficient number, since it is larger than the sum of its proper divisors (1142743941361).

11512403540231 is a wasteful number, since it uses less digits than its factorization.

11512403540231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7653934 (or 7653923 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 11512403540231 its reverse (13204530421511), we get a palindrome (24716933961742).

The spelling of 11512403540231 in words is "eleven trillion, five hundred twelve billion, four hundred three million, five hundred forty thousand, two hundred thirty-one".