23154134402 has 16 divisors (see below), whose sum is σ = 42027672960. Its totient is φ = 9339482688.

The previous prime is 23154134401. The next prime is 23154134447. The reversal of 23154134402 is 20443145132.

It is a super-2 number, since 2×23154134402² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23154134401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48642902 + ... + 48643377.

It is an arithmetic number, because the mean of its divisors is an integer number (2626729560).

Almost surely, 2^23154134402 is an apocalyptic number.

23154134402 is a deficient number, since it is larger than the sum of its proper divisors (18873538558).

23154134402 is a wasteful number, since it uses less digits than its factorization.

23154134402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97286305.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 23154134402 its reverse (20443145132), we get a palindrome (43597279534).

The spelling of 23154134402 in words is "twenty-three billion, one hundred fifty-four million, one hundred thirty-four thousand, four hundred two".