121082732390315 has 4 divisors (see below), whose sum is σ = 145299278868384. Its totient is φ = 96866185912248.

The previous prime is 121082732390311. The next prime is 121082732390363. The reversal of 121082732390315 is 513093237280121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121082732390315 - 2² = 121082732390311 is a prime.

It is a super-2 number, since 2×121082732390315² (a number of 29 digits) contains 22 as substring.

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 121082732390315.

It is not an unprimeable number, because it can be changed into a prime (121082732390311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12108273239027 + ... + 12108273239036.

It is an arithmetic number, because the mean of its divisors is an integer number (36324819717096).

Almost surely, 2^{121082732390315} is an apocalyptic number.

121082732390315 is a deficient number, since it is larger than the sum of its proper divisors (24216546478069).

121082732390315 is an equidigital number, since it uses as much as digits as its factorization.

121082732390315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24216546478068.

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 121082732390315 in words is "one hundred twenty-one trillion, eighty-two billion, seven hundred thirty-two million, three hundred ninety thousand, three hundred fifteen".