20152312402 has 16 divisors (see below), whose sum is σ = 30664771200. Its totient is φ = 9930922272.

The previous prime is 20152312391. The next prime is 20152312417. The reversal of 20152312402 is 20421325102.

It is a happy number.

It is a super-2 number, since 2×20152312402² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154923 + ... + 253585.

It is an arithmetic number, because the mean of its divisors is an integer number (1916548200).

Almost surely, 2^20152312402 is an apocalyptic number.

20152312402 is a deficient number, since it is larger than the sum of its proper divisors (10512458798).

20152312402 is a wasteful number, since it uses less digits than its factorization.

20152312402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100137.

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 20152312402 its reverse (20421325102), we get a palindrome (40573637504).

The spelling of 20152312402 in words is "twenty billion, one hundred fifty-two million, three hundred twelve thousand, four hundred two".