20125023 has 16 divisors (see below), whose sum is σ = 28131840. Its totient is φ = 12773024.

The previous prime is 20125019. The next prime is 20125031. The reversal of 20125023 is 32052102.

It is a cyclic number.

It is not a de Polignac number, because 20125023 - 2² = 20125019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20124993 and 20125011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20125033) 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, 17593 + ... + 18701.

It is an arithmetic number, because the mean of its divisors is an integer number (1758240).

Almost surely, 2^20125023 is an apocalyptic number.

20125023 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20125023 is a deficient number, since it is larger than the sum of its proper divisors (8006817).

20125023 is a wasteful number, since it uses less digits than its factorization.

20125023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 20125023 is about 4486.0921747106. The cubic root of 20125023 is about 272.0061948921.

Adding to 20125023 its reverse (32052102), we get a palindrome (52177125).

The spelling of 20125023 in words is "twenty million, one hundred twenty-five thousand, twenty-three".