121013201129 has 2 divisors, whose sum is σ = 121013201130. Its totient is φ = 121013201128.

The previous prime is 121013201123. The next prime is 121013201161. The reversal of 121013201129 is 921102310121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115074957529 + 5938243600 = 339227^2 + 77060^2 .

It is a cyclic number.

It is not a de Polignac number, because 121013201129 - 2²⁰ = 121012152553 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (121013201123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60506600564 + 60506600565.

It is an arithmetic number, because the mean of its divisors is an integer number (60506600565).

Almost surely, 2^121013201129 is an apocalyptic number.

It is an amenable number.

121013201129 is a deficient number, since it is larger than the sum of its proper divisors (1).

121013201129 is an equidigital number, since it uses as much as digits as its factorization.

121013201129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 23.

The spelling of 121013201129 in words is "one hundred twenty-one billion, thirteen million, two hundred one thousand, one hundred twenty-nine".