201102020011957 has 2 divisors, whose sum is σ = 201102020011958. Its totient is φ = 201102020011956.

The previous prime is 201102020011931. The next prime is 201102020012011. The reversal of 201102020011957 is 759110020201102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 188333875863441 + 12768144148516 = 13723479^2 + 3573254^2 .

It is a cyclic number.

It is not a de Polignac number, because 201102020011957 - 2²³ = 201102011623349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201102020011457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100551010005978 + 100551010005979.

It is an arithmetic number, because the mean of its divisors is an integer number (100551010005979).

Almost surely, 2^{201102020011957} is an apocalyptic number.

It is an amenable number.

201102020011957 is a deficient number, since it is larger than the sum of its proper divisors (1).

201102020011957 is an equidigital number, since it uses as much as digits as its factorization.

201102020011957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 31.

The spelling of 201102020011957 in words is "two hundred one trillion, one hundred two billion, twenty million, eleven thousand, nine hundred fifty-seven".