121393811908996 has 81 divisors (see below), whose sum is σ = 235365190943799. Its totient is φ = 54743468379600.

The previous prime is 121393811908951. The next prime is 121393811909003. The reversal of 121393811908996 is 699809118393121.

The square root of 121393811908996 is 11017886.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 31753545541 + ... + 31753549363.

Almost surely, 2^{121393811908996} is an apocalyptic number.

121393811908996 is the 11017886-th square number.

It is an amenable number.

121393811908996 is a deficient number, since it is larger than the sum of its proper divisors (113971379034803).

121393811908996 is an frugal number, since it uses more digits than its factorization.

121393811908996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7934 (or 3967 counting only the distinct ones).

The product of its (nonzero) digits is 45349632, while the sum is 70.

The spelling of 121393811908996 in words is "one hundred twenty-one trillion, three hundred ninety-three billion, eight hundred eleven million, nine hundred eight thousand, nine hundred ninety-six".