121360263424 has 27 divisors (see below), whose sum is σ = 242257589833. Its totient is φ = 60677344768.

The previous prime is 121360263413. The next prime is 121360263463. The reversal of 121360263424 is 424362063121.

The square root of 121360263424 is 348368.

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

It can be written as a sum of positive squares in only one way, i.e., 16363526400 + 104996737024 = 127920^2 + 324032^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121360263424.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 5563002 + ... + 5584774.

Almost surely, 2^121360263424 is an apocalyptic number.

121360263424 is the 348368-th square number.

It is an amenable number.

121360263424 is a deficient number, since it is larger than the sum of its proper divisors (120897326409).

121360263424 is an frugal number, since it uses more digits than its factorization.

121360263424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43562 (or 21775 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

The spelling of 121360263424 in words is "one hundred twenty-one billion, three hundred sixty million, two hundred sixty-three thousand, four hundred twenty-four".