121333392457 has 2 divisors, whose sum is σ = 121333392458. Its totient is φ = 121333392456.

The previous prime is 121333392451. The next prime is 121333392503. The reversal of 121333392457 is 754293333121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88099737856 + 33233654601 = 296816^2 + 182301^2 .

It is a cyclic number.

It is not a de Polignac number, because 121333392457 - 2⁷ = 121333392329 is a prime.

It is not a weakly prime, because it can be changed into another prime (121333392451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60666696228 + 60666696229.

It is an arithmetic number, because the mean of its divisors is an integer number (60666696229).

Almost surely, 2^121333392457 is an apocalyptic number.

It is an amenable number.

121333392457 is a deficient number, since it is larger than the sum of its proper divisors (1).

121333392457 is an equidigital number, since it uses as much as digits as its factorization.

121333392457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 408240, while the sum is 43.

The spelling of 121333392457 in words is "one hundred twenty-one billion, three hundred thirty-three million, three hundred ninety-two thousand, four hundred fifty-seven".