20100424923 has 6 divisors (see below), whose sum is σ = 29033947124. Its totient is φ = 13400283276.

The previous prime is 20100424879. The next prime is 20100424991. The reversal of 20100424923 is 32942400102.

It is not a de Polignac number, because 20100424923 - 2⁶ = 20100424859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20100425923) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1116690265 + ... + 1116690282.

Almost surely, 2^20100424923 is an apocalyptic number.

20100424923 is a deficient number, since it is larger than the sum of its proper divisors (8933522201).

20100424923 is a wasteful number, since it uses less digits than its factorization.

20100424923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2233380553 (or 2233380550 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The spelling of 20100424923 in words is "twenty billion, one hundred million, four hundred twenty-four thousand, nine hundred twenty-three".