10402331231 has 4 divisors (see below), whose sum is σ = 10405746000. Its totient is φ = 10398916464.

The previous prime is 10402331213. The next prime is 10402331287. The reversal of 10402331231 is 13213320401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13213320401 = 139 ⋅95059859.

It is a cyclic number.

It is not a de Polignac number, because 10402331231 - 2²² = 10398136927 is a prime.

It is a super-2 number, since 2×10402331231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10402331131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1702811 + ... + 1708908.

It is an arithmetic number, because the mean of its divisors is an integer number (2601436500).

Almost surely, 2^10402331231 is an apocalyptic number.

10402331231 is a deficient number, since it is larger than the sum of its proper divisors (3414769).

10402331231 is an equidigital number, since it uses as much as digits as its factorization.

10402331231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3414768.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 10402331231 its reverse (13213320401), we get a palindrome (23615651632).

The spelling of 10402331231 in words is "ten billion, four hundred two million, three hundred thirty-one thousand, two hundred thirty-one".