121077976049 has 2 divisors, whose sum is σ = 121077976050. Its totient is φ = 121077976048.

The previous prime is 121077976027. The next prime is 121077976109. The reversal of 121077976049 is 940679770121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117474135025 + 3603841024 = 342745^2 + 60032^2 .

It is a cyclic number.

It is not a de Polignac number, because 121077976049 - 2⁸ = 121077975793 is a prime.

It is not a weakly prime, because it can be changed into another prime (121077972049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60538988024 + 60538988025.

It is an arithmetic number, because the mean of its divisors is an integer number (60538988025).

Almost surely, 2^121077976049 is an apocalyptic number.

It is an amenable number.

121077976049 is a deficient number, since it is larger than the sum of its proper divisors (1).

121077976049 is an equidigital number, since it uses as much as digits as its factorization.

121077976049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1333584, while the sum is 53.

The spelling of 121077976049 in words is "one hundred twenty-one billion, seventy-seven million, nine hundred seventy-six thousand, forty-nine".