23643402011345 has 16 divisors (see below), whose sum is σ = 28417401987408. Its totient is φ = 18884510760960.

The previous prime is 23643402011311. The next prime is 23643402011363. The reversal of 23643402011345 is 54311020434632.

It can be written as a sum of positive squares in 8 ways, for example, as 283202780224 + 23360199231121 = 532168^2 + 4833239^2 .

It is not a de Polignac number, because 23643402011345 - 2²² = 23643397817041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23643402011299 and 23643402011308.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96659237 + ... + 96903533.

It is an arithmetic number, because the mean of its divisors is an integer number (1776087624213).

Almost surely, 2^{23643402011345} is an apocalyptic number.

It is an amenable number.

23643402011345 is a deficient number, since it is larger than the sum of its proper divisors (4773999976063).

23643402011345 is a wasteful number, since it uses less digits than its factorization.

23643402011345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275140.

The product of its (nonzero) digits is 207360, while the sum is 38.

Adding to 23643402011345 its reverse (54311020434632), we get a palindrome (77954422445977).

The spelling of 23643402011345 in words is "twenty-three trillion, six hundred forty-three billion, four hundred two million, eleven thousand, three hundred forty-five".