121310392 has 32 divisors (see below), whose sum is σ = 260949600. Its totient is φ = 51790464.

The previous prime is 121310369. The next prime is 121310407. The reversal of 121310392 is 293013121.

It is a super-2 number, since 2×121310392² = 29432422414387328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11038 + ... + 19090.

It is an arithmetic number, because the mean of its divisors is an integer number (8154675).

Almost surely, 2^121310392 is an apocalyptic number.

It is an amenable number.

121310392 is an abundant number, since it is smaller than the sum of its proper divisors (139639208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121310392 is a wasteful number, since it uses less digits than its factorization.

121310392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8335 (or 8331 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 121310392 is about 11014.0996908508. The cubic root of 121310392 is about 495.0313104706.

The spelling of 121310392 in words is "one hundred twenty-one million, three hundred ten thousand, three hundred ninety-two".