121311320300 has 18 divisors (see below), whose sum is σ = 263245565268. Its totient is φ = 48524528080.

The previous prime is 121311320293. The next prime is 121311320329. The reversal of 121311320300 is 3023113121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 606556502 + ... + 606556701.

It is an arithmetic number, because the mean of its divisors is an integer number (14624753626).

Almost surely, 2^121311320300 is an apocalyptic number.

121311320300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121311320300 is an abundant number, since it is smaller than the sum of its proper divisors (141934244968).

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

121311320300 is a wasteful number, since it uses less digits than its factorization.

121311320300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213113217 (or 1213113210 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 121311320300 its reverse (3023113121), we get a palindrome (124334433421).

The spelling of 121311320300 in words is "one hundred twenty-one billion, three hundred eleven million, three hundred twenty thousand, three hundred".