121120303312 has 20 divisors (see below), whose sum is σ = 244873657440. Its totient is φ = 57927101408.

The previous prime is 121120303303. The next prime is 121120303313. The reversal of 121120303312 is 213303021121.

It is a self number, because there is not a number n which added to its sum of digits gives 121120303312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121120303313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164565262 + ... + 164565997.

It is an arithmetic number, because the mean of its divisors is an integer number (12243682872).

Almost surely, 2^121120303312 is an apocalyptic number.

It is an amenable number.

121120303312 is an abundant number, since it is smaller than the sum of its proper divisors (123753354128).

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

121120303312 is a wasteful number, since it uses less digits than its factorization.

121120303312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329131290 (or 329131284 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 121120303312 its reverse (213303021121), we get a palindrome (334423324433).

The spelling of 121120303312 in words is "one hundred twenty-one billion, one hundred twenty million, three hundred three thousand, three hundred twelve".