121338259161013 has 2 divisors, whose sum is σ = 121338259161014. Its totient is φ = 121338259161012.

The previous prime is 121338259160917. The next prime is 121338259161017. The reversal of 121338259161013 is 310161952833121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120861395715204 + 476863445809 = 10993698^2 + 690553^2 .

It is a cyclic number.

It is not a de Polignac number, because 121338259161013 - 2⁴⁵ = 86153887072181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121338259161017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60669129580506 + 60669129580507.

It is an arithmetic number, because the mean of its divisors is an integer number (60669129580507).

Almost surely, 2^{121338259161013} is an apocalyptic number.

It is an amenable number.

121338259161013 is a deficient number, since it is larger than the sum of its proper divisors (1).

121338259161013 is an equidigital number, since it uses as much as digits as its factorization.

121338259161013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 46.

The spelling of 121338259161013 in words is "one hundred twenty-one trillion, three hundred thirty-eight billion, two hundred fifty-nine million, one hundred sixty-one thousand, thirteen".