121313020023 has 48 divisors (see below), whose sum is σ = 195884226720. Its totient is φ = 71833289472.

The previous prime is 121313020001. The next prime is 121313020043. The reversal of 121313020023 is 320020313121.

It is not a de Polignac number, because 121313020023 - 2¹⁰ = 121313018999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121313019978 and 121313020005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121313020043) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 933136 + ... + 1055162.

It is an arithmetic number, because the mean of its divisors is an integer number (4080921390).

Almost surely, 2^121313020023 is an apocalyptic number.

121313020023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

121313020023 is a deficient number, since it is larger than the sum of its proper divisors (74571206697).

121313020023 is a wasteful number, since it uses less digits than its factorization.

121313020023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122368 (or 122365 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 121313020023 its reverse (320020313121), we get a palindrome (441333333144).

The spelling of 121313020023 in words is "one hundred twenty-one billion, three hundred thirteen million, twenty thousand, twenty-three".