121310231113320 has 64 divisors (see below), whose sum is σ = 375670393136640. Its totient is φ = 31305866092800.

The previous prime is 121310231113283. The next prime is 121310231113367. The reversal of 121310231113320 is 23311132013121.

It is a super-2 number, since 2×121310231113320² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16305134871 + ... + 16305142310.

It is an arithmetic number, because the mean of its divisors is an integer number (5869849892760).

Almost surely, 2^{121310231113320} is an apocalyptic number.

121310231113320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121310231113320 is an abundant number, since it is smaller than the sum of its proper divisors (254360162023320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121310231113320 is a wasteful number, since it uses less digits than its factorization.

121310231113320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32610277226 (or 32610277222 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 121310231113320 its reverse (23311132013121), we get a palindrome (144621363126441).

The spelling of 121310231113320 in words is "one hundred twenty-one trillion, three hundred ten billion, two hundred thirty-one million, one hundred thirteen thousand, three hundred twenty".