20400204110 has 128 divisors (see below), whose sum is σ = 43688211840. Its totient is φ = 6761318400.

The previous prime is 20400204103. The next prime is 20400204133. The reversal of 20400204110 is 1140200402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 69625124 + ... + 69625416.

It is an arithmetic number, because the mean of its divisors is an integer number (341314155).

Almost surely, 2^20400204110 is an apocalyptic number.

20400204110 is an abundant number, since it is smaller than the sum of its proper divisors (23288007730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20400204110 is a wasteful number, since it uses less digits than its factorization.

20400204110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20400204110 its reverse (1140200402), we get a palindrome (21540404512).

The spelling of 20400204110 in words is "twenty billion, four hundred million, two hundred four thousand, one hundred ten".