20425930231 has 16 divisors (see below), whose sum is σ = 23826510400. Its totient is φ = 17503395840.

The previous prime is 20425930201. The next prime is 20425930237. The reversal of 20425930231 is 13203952402.

It is not a de Polignac number, because 20425930231 - 2¹⁵ = 20425897463 is a prime.

It is a super-2 number, since 2×20425930231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20425930193 and 20425930202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20425930237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2498791 + ... + 2506951.

It is an arithmetic number, because the mean of its divisors is an integer number (1489156900).

Almost surely, 2^20425930231 is an apocalyptic number.

20425930231 is a deficient number, since it is larger than the sum of its proper divisors (3400580169).

20425930231 is an frugal number, since it uses more digits than its factorization.

20425930231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15479 (or 15465 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The spelling of 20425930231 in words is "twenty billion, four hundred twenty-five million, nine hundred thirty thousand, two hundred thirty-one".