121049931 has 8 divisors (see below), whose sum is σ = 169894720. Its totient is φ = 76452552.

The previous prime is 121049927. The next prime is 121049953. The reversal of 121049931 is 139940121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121049931 - 2² = 121049927 is a prime.

It is a super-2 number, since 2×121049931² = 29306171590209522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121049921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1061785 + ... + 1061898.

It is an arithmetic number, because the mean of its divisors is an integer number (21236840).

Almost surely, 2^121049931 is an apocalyptic number.

121049931 is a deficient number, since it is larger than the sum of its proper divisors (48844789).

121049931 is a wasteful number, since it uses less digits than its factorization.

121049931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2123705.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 121049931 is about 11002.2693568191. The cubic root of 121049931 is about 494.6767688786.

The spelling of 121049931 in words is "one hundred twenty-one million, forty-nine thousand, nine hundred thirty-one".