20312053 has 2 divisors, whose sum is σ = 20312054. Its totient is φ = 20312052.

The previous prime is 20312021. The next prime is 20312057. The reversal of 20312053 is 35021302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20088324 + 223729 = 4482^2 + 473^2 .

It is a cyclic number.

It is not a de Polignac number, because 20312053 - 2⁵ = 20312021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20312057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10156026 + 10156027.

It is an arithmetic number, because the mean of its divisors is an integer number (10156027).

Almost surely, 2^20312053 is an apocalyptic number.

It is an amenable number.

20312053 is a deficient number, since it is larger than the sum of its proper divisors (1).

20312053 is an equidigital number, since it uses as much as digits as its factorization.

20312053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 20312053 is about 4506.8895038596. The cubic root of 20312053 is about 272.8462193040.

Adding to 20312053 its reverse (35021302), we get a palindrome (55333355).

The spelling of 20312053 in words is "twenty million, three hundred twelve thousand, fifty-three".