120997951211 has 2 divisors, whose sum is σ = 120997951212. Its totient is φ = 120997951210.

The previous prime is 120997951157. The next prime is 120997951241. The reversal of 120997951211 is 112159799021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120997951211 is a prime.

It is not a weakly prime, because it can be changed into another prime (120997951241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60498975605 + 60498975606.

It is an arithmetic number, because the mean of its divisors is an integer number (60498975606).

Almost surely, 2^120997951211 is an apocalyptic number.

120997951211 is a deficient number, since it is larger than the sum of its proper divisors (1).

120997951211 is an equidigital number, since it uses as much as digits as its factorization.

120997951211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 102060, while the sum is 47.

The spelling of 120997951211 in words is "one hundred twenty billion, nine hundred ninety-seven million, nine hundred fifty-one thousand, two hundred eleven".