121011312300 has 36 divisors (see below), whose sum is σ = 350126064456. Its totient is φ = 32269683200.

The previous prime is 121011312287. The next prime is 121011312319. The reversal of 121011312300 is 3213110121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 121011312300.

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, 201685221 + ... + 201685820.

Almost surely, 2^121011312300 is an apocalyptic number.

121011312300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121011312300 is an abundant number, since it is smaller than the sum of its proper divisors (229114752156).

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

121011312300 is a wasteful number, since it uses less digits than its factorization.

121011312300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403371058 (or 403371051 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 121011312300 its reverse (3213110121), we get a palindrome (124224422421).

The spelling of 121011312300 in words is "one hundred twenty-one billion, eleven million, three hundred twelve thousand, three hundred".