121123012300000 has 72 divisors (see below), whose sum is σ = 298057086453672. Its totient is φ = 48449204880000.

The previous prime is 121123012299959. The next prime is 121123012300061. The reversal of 121123012300000 is 3210321121.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

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, 605515062 + ... + 605715061.

It is an arithmetic number, because the mean of its divisors is an integer number (4139681756301).

Almost surely, 2^{121123012300000} is an apocalyptic number.

121123012300000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121123012300000 is an abundant number, since it is smaller than the sum of its proper divisors (176934074153672).

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

121123012300000 is an frugal number, since it uses more digits than its factorization.

121123012300000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211230158 (or 1211230130 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 121123012300000 its reverse (3210321121), we get a palindrome (121126222621121).

The spelling of 121123012300000 in words is "one hundred twenty-one trillion, one hundred twenty-three billion, twelve million, three hundred thousand".