121131113000 has 64 divisors (see below), whose sum is σ = 286862022720. Its totient is φ = 47868648000.

The previous prime is 121131112987. The next prime is 121131113009. The reversal of 121131113000 is 311131121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (121131113009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 646706 + ... + 812705.

It is an arithmetic number, because the mean of its divisors is an integer number (4482219105).

Almost surely, 2^121131113000 is an apocalyptic number.

121131113000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121131113000 is an abundant number, since it is smaller than the sum of its proper divisors (165730909720).

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

121131113000 is a wasteful number, since it uses less digits than its factorization.

121131113000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459515 (or 1459501 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 121131113000 its reverse (311131121), we get a palindrome (121442244121).

The spelling of 121131113000 in words is "one hundred twenty-one billion, one hundred thirty-one million, one hundred thirteen thousand".