121352599755 has 12 divisors (see below), whose sum is σ = 210344506320. Its totient is φ = 64721386512.

The previous prime is 121352599733. The next prime is 121352599799. The reversal of 121352599755 is 557995253121.

121352599755 is a `hidden beast` number, since 1 + 21 + 3 + 525 + 9 + 97 + 5 + 5 = 666.

It is not a de Polignac number, because 121352599755 - 2⁶ = 121352599691 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1348362175 + ... + 1348362264.

It is an arithmetic number, because the mean of its divisors is an integer number (17528708860).

Almost surely, 2^121352599755 is an apocalyptic number.

121352599755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

121352599755 is a deficient number, since it is larger than the sum of its proper divisors (88991906565).

121352599755 is a wasteful number, since it uses less digits than its factorization.

121352599755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2696724450 (or 2696724447 counting only the distinct ones).

The product of its digits is 4252500, while the sum is 54.

The spelling of 121352599755 in words is "one hundred twenty-one billion, three hundred fifty-two million, five hundred ninety-nine thousand, seven hundred fifty-five".