11320400525431 has 4 divisors (see below), whose sum is σ = 11320426709200. Its totient is φ = 11320374341664.

The previous prime is 11320400525429. The next prime is 11320400525443. The reversal of 11320400525431 is 13452500402311.

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 11320400525431 - 2¹ = 11320400525429 is a prime.

It is a super-2 number, since 2×11320400525431² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11320400525393 and 11320400525402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11320400528431) 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, 12432291 + ... + 13311748.

It is an arithmetic number, because the mean of its divisors is an integer number (2830106677300).

Almost surely, 2^{11320400525431} is an apocalyptic number.

11320400525431 is a deficient number, since it is larger than the sum of its proper divisors (26183769).

11320400525431 is an equidigital number, since it uses as much as digits as its factorization.

11320400525431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26183768.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 11320400525431 its reverse (13452500402311), we get a palindrome (24772900927742).

The spelling of 11320400525431 in words is "eleven trillion, three hundred twenty billion, four hundred million, five hundred twenty-five thousand, four hundred thirty-one".