121334440957 has 2 divisors, whose sum is σ = 121334440958. Its totient is φ = 121334440956.

The previous prime is 121334440951. The next prime is 121334441087. The reversal of 121334440957 is 759044433121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89868647961 + 31465792996 = 299781^2 + 177386^2 .

It is a cyclic number.

It is not a de Polignac number, because 121334440957 - 2³ = 121334440949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121334440951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60667220478 + 60667220479.

It is an arithmetic number, because the mean of its divisors is an integer number (60667220479).

Almost surely, 2^121334440957 is an apocalyptic number.

It is an amenable number.

121334440957 is a deficient number, since it is larger than the sum of its proper divisors (1).

121334440957 is an equidigital number, since it uses as much as digits as its factorization.

121334440957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 121334440957 in words is "one hundred twenty-one billion, three hundred thirty-four million, four hundred forty thousand, nine hundred fifty-seven".