57516112122101 has 2 divisors, whose sum is σ = 57516112122102. Its totient is φ = 57516112122100.

The previous prime is 57516112122097. The next prime is 57516112122137. The reversal of 57516112122101 is 10122121161575.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55364686155025 + 2151425967076 = 7440745^2 + 1466774^2 .

It is a cyclic number.

It is not a de Polignac number, because 57516112122101 - 2² = 57516112122097 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57516112121101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28758056061050 + 28758056061051.

It is an arithmetic number, because the mean of its divisors is an integer number (28758056061051).

Almost surely, 2^{57516112122101} is an apocalyptic number.

It is an amenable number.

57516112122101 is a deficient number, since it is larger than the sum of its proper divisors (1).

57516112122101 is an equidigital number, since it uses as much as digits as its factorization.

57516112122101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8400, while the sum is 35.

Adding to 57516112122101 its reverse (10122121161575), we get a palindrome (67638233283676).

The spelling of 57516112122101 in words is "fifty-seven trillion, five hundred sixteen billion, one hundred twelve million, one hundred twenty-two thousand, one hundred one".