121300120321320 has 128 divisors (see below), whose sum is σ = 379934622627840. Its totient is φ = 30923005175040.

The previous prime is 121300120321313. The next prime is 121300120321339. The reversal of 121300120321320 is 23123021003121.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7364836 + ... + 17229075.

It is an arithmetic number, because the mean of its divisors is an integer number (2968239239280).

Almost surely, 2^{121300120321320} is an apocalyptic number.

121300120321320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121300120321320 is an abundant number, since it is smaller than the sum of its proper divisors (258634502306520).

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

121300120321320 is a wasteful number, since it uses less digits than its factorization.

121300120321320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24595735 (or 24595731 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 121300120321320 its reverse (23123021003121), we get a palindrome (144423141324441).

The spelling of 121300120321320 in words is "one hundred twenty-one trillion, three hundred billion, one hundred twenty million, three hundred twenty-one thousand, three hundred twenty".