20910042307 has 24 divisors (see below), whose sum is σ = 26322508800. Its totient is φ = 16259208240.

The previous prime is 20910042277. The next prime is 20910042337. The reversal of 20910042307 is 70324001902.

It is an interprime number because it is at equal distance from previous prime (20910042277) and next prime (20910042337).

It is not a de Polignac number, because 20910042307 - 2¹⁵ = 20910009539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20910042337) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 379944 + ... + 431482.

It is an arithmetic number, because the mean of its divisors is an integer number (1096771200).

Almost surely, 2^20910042307 is an apocalyptic number.

20910042307 is a deficient number, since it is larger than the sum of its proper divisors (5412466493).

20910042307 is a wasteful number, since it uses less digits than its factorization.

20910042307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52047 (or 52036 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The spelling of 20910042307 in words is "twenty billion, nine hundred ten million, forty-two thousand, three hundred seven".