121115130000 has 100 divisors (see below), whose sum is σ = 390975885168. Its totient is φ = 32297360000.

The previous prime is 121115129999. The next prime is 121115130023. The reversal of 121115130000 is 31511121.

It is a tau number, because it is divible by the number of its divisors (100).

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1988586 + ... + 2048585.

Almost surely, 2^121115130000 is an apocalyptic number.

121115130000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121115130000 is an abundant number, since it is smaller than the sum of its proper divisors (269860755168).

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

121115130000 is an equidigital number, since it uses as much as digits as its factorization.

121115130000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4037202 (or 4037181 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 15.

Adding to 121115130000 its reverse (31511121), we get a palindrome (121146641121).

The spelling of 121115130000 in words is "one hundred twenty-one billion, one hundred fifteen million, one hundred thirty thousand".