20110957 has 2 divisors, whose sum is σ = 20110958. Its totient is φ = 20110956.

The previous prime is 20110927. The next prime is 20110967. The reversal of 20110957 is 75901102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15007876 + 5103081 = 3874^2 + 2259^2 .

It is a cyclic number.

It is not a de Polignac number, because 20110957 - 2¹⁵ = 20078189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20110927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055478 + 10055479.

It is an arithmetic number, because the mean of its divisors is an integer number (10055479).

Almost surely, 2^20110957 is an apocalyptic number.

It is an amenable number.

20110957 is a deficient number, since it is larger than the sum of its proper divisors (1).

20110957 is an equidigital number, since it uses as much as digits as its factorization.

20110957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 20110957 is about 4484.5241665086. The cubic root of 20110957 is about 271.9428089461.

It can be divided in two parts, 2011095 and 7, that added together give a palindrome (2011102).

The spelling of 20110957 in words is "twenty million, one hundred ten thousand, nine hundred fifty-seven".