20423211024 has 40 divisors (see below), whose sum is σ = 54579274560. Its totient is φ = 6572987008.

The previous prime is 20423211019. The next prime is 20423211047. The reversal of 20423211024 is 42011232402.

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, 7334532 + ... + 7337315.

It is an arithmetic number, because the mean of its divisors is an integer number (1364481864).

Almost surely, 2^20423211024 is an apocalyptic number.

20423211024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20423211024 is an abundant number, since it is smaller than the sum of its proper divisors (34156063536).

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

20423211024 is a wasteful number, since it uses less digits than its factorization.

20423211024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14671887 (or 14671881 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20423211024 its reverse (42011232402), we get a palindrome (62434443426).

The spelling of 20423211024 in words is "twenty billion, four hundred twenty-three million, two hundred eleven thousand, twenty-four".