12402324113431 has 32 divisors (see below), whose sum is σ = 15136530554880. Its totient is φ = 9932443516800.

The previous prime is 12402324113401. The next prime is 12402324113477. The reversal of 12402324113431 is 13431142320421.

It is a happy number.

It is not a de Polignac number, because 12402324113431 - 2⁷ = 12402324113303 is a prime.

It is a super-2 number, since 2×12402324113431² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 12402324113393 and 12402324113402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12402324113401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 241166101 + ... + 241217521.

It is an arithmetic number, because the mean of its divisors is an integer number (473016579840).

Almost surely, 2^{12402324113431} is an apocalyptic number.

12402324113431 is a deficient number, since it is larger than the sum of its proper divisors (2734206441449).

12402324113431 is a wasteful number, since it uses less digits than its factorization.

12402324113431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89815.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 12402324113431 its reverse (13431142320421), we get a palindrome (25833466433852).

The spelling of 12402324113431 in words is "twelve trillion, four hundred two billion, three hundred twenty-four million, one hundred thirteen thousand, four hundred thirty-one".