121309114957 has 2 divisors, whose sum is σ = 121309114958. Its totient is φ = 121309114956.

The previous prime is 121309114951. The next prime is 121309114963. The reversal of 121309114957 is 759411903121.

It is a balanced prime because it is at equal distance from previous prime (121309114951) and next prime (121309114963).

It can be written as a sum of positive squares in only one way, i.e., 110286424836 + 11022690121 = 332094^2 + 104989^2 .

It is a cyclic number.

It is not a de Polignac number, because 121309114957 - 2³⁵ = 86949376589 is a prime.

It is a super-2 number, since 2×121309114957² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121309114951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60654557478 + 60654557479.

It is an arithmetic number, because the mean of its divisors is an integer number (60654557479).

Almost surely, 2^121309114957 is an apocalyptic number.

It is an amenable number.

121309114957 is a deficient number, since it is larger than the sum of its proper divisors (1).

121309114957 is an equidigital number, since it uses as much as digits as its factorization.

121309114957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 43.

The spelling of 121309114957 in words is "one hundred twenty-one billion, three hundred nine million, one hundred fourteen thousand, nine hundred fifty-seven".