20125542423 has 16 divisors (see below), whose sum is σ = 31496345600. Its totient is φ = 11189490336.

The previous prime is 20125542419. The next prime is 20125542427. The reversal of 20125542423 is 32424552102.

It is an interprime number because it is at equal distance from previous prime (20125542419) and next prime (20125542427).

It is not a de Polignac number, because 20125542423 - 2² = 20125542419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20125542427) 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, 12950023 + ... + 12951576.

It is an arithmetic number, because the mean of its divisors is an integer number (1968521600).

Almost surely, 2^20125542423 is an apocalyptic number.

20125542423 is a deficient number, since it is larger than the sum of its proper divisors (11370803177).

20125542423 is a wasteful number, since it uses less digits than its factorization.

20125542423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25901646.

The product of its (nonzero) digits is 19200, while the sum is 30.

The spelling of 20125542423 in words is "twenty billion, one hundred twenty-five million, five hundred forty-two thousand, four hundred twenty-three".