121079513 has 2 divisors, whose sum is σ = 121079514. Its totient is φ = 121079512.

The previous prime is 121079477. The next prime is 121079527. The reversal of 121079513 is 315970121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105103504 + 15976009 = 10252^2 + 3997^2 .

It is a cyclic number.

It is not a de Polignac number, because 121079513 - 2²⁶ = 53970649 is a prime.

It is not a weakly prime, because it can be changed into another prime (121079213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60539756 + 60539757.

It is an arithmetic number, because the mean of its divisors is an integer number (60539757).

Almost surely, 2^121079513 is an apocalyptic number.

It is an amenable number.

121079513 is a deficient number, since it is larger than the sum of its proper divisors (1).

121079513 is an equidigital number, since it uses as much as digits as its factorization.

121079513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1890, while the sum is 29.

The square root of 121079513 is about 11003.6136337114. The cubic root of 121079513 is about 494.7170617180.

The spelling of 121079513 in words is "one hundred twenty-one million, seventy-nine thousand, five hundred thirteen".