121102020929 has 2 divisors, whose sum is σ = 121102020930. Its totient is φ = 121102020928.

The previous prime is 121102020917. The next prime is 121102020961. The reversal of 121102020929 is 929020201121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90707585329 + 30394435600 = 301177^2 + 174340^2 .

It is a cyclic number.

It is not a de Polignac number, because 121102020929 - 2¹⁶ = 121101955393 is a prime.

It is not a weakly prime, because it can be changed into another prime (121102020229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60551010464 + 60551010465.

It is an arithmetic number, because the mean of its divisors is an integer number (60551010465).

Almost surely, 2^121102020929 is an apocalyptic number.

It is an amenable number.

121102020929 is a deficient number, since it is larger than the sum of its proper divisors (1).

121102020929 is an equidigital number, since it uses as much as digits as its factorization.

121102020929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 121102020929 in words is "one hundred twenty-one billion, one hundred two million, twenty thousand, nine hundred twenty-nine".