121600756369 has 9 divisors (see below), whose sum is σ = 122785508937. Its totient is φ = 120427337124.

The previous prime is 121600756351. The next prime is 121600756393. The reversal of 121600756369 is 963657006121.

The square root of 121600756369 is 348713.

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

It is not a de Polignac number, because 121600756369 - 2¹⁹ = 121600232081 is a prime.

It is a super-2 number, since 2×121600756369² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121600756309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 37310662 + ... + 37313920.

Almost surely, 2^121600756369 is an apocalyptic number.

121600756369 is the 348713-rd square number.

121600756369 is the 174357-th centered octagonal number.

It is an amenable number.

121600756369 is a deficient number, since it is larger than the sum of its proper divisors (1184752568).

121600756369 is an frugal number, since it uses more digits than its factorization.

121600756369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6732 (or 3366 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 46.

It can be divided in two parts, 121600 and 756369, that added together give a square (877969 = 937²).

The spelling of 121600756369 in words is "one hundred twenty-one billion, six hundred million, seven hundred fifty-six thousand, three hundred sixty-nine".