121600756370 has 32 divisors (see below), whose sum is σ = 226468148400. Its totient is φ = 46954930176.

The previous prime is 121600756351. The next prime is 121600756393. The reversal of 121600756370 is 73657006121.

It is a Cunningham number, because it is equal to 348713²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 43775937529 + 77824818841 = 209227^2 + 278971^2 .

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1804646 + ... + 1870814.

Almost surely, 2^121600756370 is an apocalyptic number.

121600756370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121600756370 is a deficient number, since it is larger than the sum of its proper divisors (104867392030).

121600756370 is a wasteful number, since it uses less digits than its factorization.

121600756370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72542.

The product of its (nonzero) digits is 52920, while the sum is 38.

The spelling of 121600756370 in words is "one hundred twenty-one billion, six hundred million, seven hundred fifty-six thousand, three hundred seventy".