121051331 has 2 divisors, whose sum is σ = 121051332. Its totient is φ = 121051330.

The previous prime is 121051327. The next prime is 121051351. The reversal of 121051331 is 133150121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121051331 - 2² = 121051327 is a prime.

It is a super-2 number, since 2×121051331² = 29306849473743122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121051351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60525665 + 60525666.

It is an arithmetic number, because the mean of its divisors is an integer number (60525666).

Almost surely, 2^121051331 is an apocalyptic number.

121051331 is a deficient number, since it is larger than the sum of its proper divisors (1).

121051331 is an equidigital number, since it uses as much as digits as its factorization.

121051331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 121051331 is about 11002.3329798730. The cubic root of 121051331 is about 494.6786759285.

The spelling of 121051331 in words is "one hundred twenty-one million, fifty-one thousand, three hundred thirty-one".