121313011300 has 72 divisors (see below), whose sum is σ = 289531218816. Its totient is φ = 43839442560.

The previous prime is 121313011291. The next prime is 121313011429. The reversal of 121313011300 is 3110313121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 931642 + ... + 1053841.

It is an arithmetic number, because the mean of its divisors is an integer number (4021266928).

Almost surely, 2^121313011300 is an apocalyptic number.

121313011300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121313011300 is an abundant number, since it is smaller than the sum of its proper divisors (168218207516).

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

121313011300 is a wasteful number, since it uses less digits than its factorization.

121313011300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1985557 (or 1985550 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 121313011300 its reverse (3110313121), we get a palindrome (124423324421).

The spelling of 121313011300 in words is "one hundred twenty-one billion, three hundred thirteen million, eleven thousand, three hundred".