57921971101 has 2 divisors, whose sum is σ = 57921971102. Its totient is φ = 57921971100.

The previous prime is 57921971083. The next prime is 57921971113. The reversal of 57921971101 is 10117912975.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55107562500 + 2814408601 = 234750^2 + 53051^2 .

It is a cyclic number.

It is not a de Polignac number, because 57921971101 - 2¹⁷ = 57921840029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57921981101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28960985550 + 28960985551.

It is an arithmetic number, because the mean of its divisors is an integer number (28960985551).

Almost surely, 2^57921971101 is an apocalyptic number.

It is an amenable number.

57921971101 is a deficient number, since it is larger than the sum of its proper divisors (1).

57921971101 is an equidigital number, since it uses as much as digits as its factorization.

57921971101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39690, while the sum is 43.

The spelling of 57921971101 in words is "fifty-seven billion, nine hundred twenty-one million, nine hundred seventy-one thousand, one hundred one".