121737342115057 has 2 divisors, whose sum is σ = 121737342115058. Its totient is φ = 121737342115056.

The previous prime is 121737342115027. The next prime is 121737342115063. The reversal of 121737342115057 is 750511243737121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86678911642801 + 35058430472256 = 9310151^2 + 5921016^2 .

It is a cyclic number.

It is not a de Polignac number, because 121737342115057 - 2⁷ = 121737342114929 is a prime.

It is a super-2 number, since 2×121737342115057² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121737342115057.

It is not a weakly prime, because it can be changed into another prime (121737342115027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60868671057528 + 60868671057529.

It is an arithmetic number, because the mean of its divisors is an integer number (60868671057529).

Almost surely, 2^{121737342115057} is an apocalyptic number.

It is an amenable number.

121737342115057 is a deficient number, since it is larger than the sum of its proper divisors (1).

121737342115057 is an equidigital number, since it uses as much as digits as its factorization.

121737342115057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1234800, while the sum is 49.

The spelling of 121737342115057 in words is "one hundred twenty-one trillion, seven hundred thirty-seven billion, three hundred forty-two million, one hundred fifteen thousand, fifty-seven".