121111130880 has 144 divisors (see below), whose sum is σ = 429776427360. Its totient is φ = 32296292352.

The previous prime is 121111130867. The next prime is 121111130927. The reversal of 121111130880 is 88031111121.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1717627 + ... + 1786746.

Almost surely, 2^121111130880 is an apocalyptic number.

121111130880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121111130880 is an abundant number, since it is smaller than the sum of its proper divisors (308665296480).

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

121111130880 is an equidigital number, since it uses as much as digits as its factorization.

121111130880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3504403 (or 3504383 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 27.

The spelling of 121111130880 in words is "one hundred twenty-one billion, one hundred eleven million, one hundred thirty thousand, eight hundred eighty".