121313031300 has 108 divisors (see below), whose sum is σ = 380316432496. Its totient is φ = 32344401600.

The previous prime is 121313031269. The next prime is 121313031347. The reversal of 121313031300 is 3130313121.

It is a happy number.

121313031300 is a `hidden beast` number, since 1 + 21 + 313 + 0 + 31 + 300 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 35 ways as a sum of consecutive naturals, for example, 8174487 + ... + 8189313.

Almost surely, 2^121313031300 is an apocalyptic number.

121313031300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121313031300 is an abundant number, since it is smaller than the sum of its proper divisors (259003401196).

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

121313031300 is a wasteful number, since it uses less digits than its factorization.

121313031300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23938 (or 23928 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 121313031300 its reverse (3130313121), we get a palindrome (124443344421).

The spelling of 121313031300 in words is "one hundred twenty-one billion, three hundred thirteen million, thirty-one thousand, three hundred".