121131331200320 has 168 divisors, whose sum is σ = 336775032783360. Its totient is φ = 41377490703360.

The previous prime is 121131331200317. The next prime is 121131331200389. The reversal of 121131331200320 is 23002133131121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10003880 + ... + 18502439.

Almost surely, 2^{121131331200320} is an apocalyptic number.

121131331200320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121131331200320 is an abundant number, since it is smaller than the sum of its proper divisors (215643701583040).

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

121131331200320 is a wasteful number, since it uses less digits than its factorization.

121131331200320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28506621 (or 28506604 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 121131331200320 its reverse (23002133131121), we get a palindrome (144133464331441).

The spelling of 121131331200320 in words is "one hundred twenty-one trillion, one hundred thirty-one billion, three hundred thirty-one million, two hundred thousand, three hundred twenty".