121310201302312 has 128 divisors (see below), whose sum is σ = 251256617827200. Its totient is φ = 54452277734400.

The previous prime is 121310201302307. The next prime is 121310201302357. The reversal of 121310201302312 is 213203102013121.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 2066830438 + ... + 2066889130.

It is an arithmetic number, because the mean of its divisors is an integer number (1962942326775).

Almost surely, 2^{121310201302312} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121310201302312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125628308913600).

121310201302312 is an abundant number, since it is smaller than the sum of its proper divisors (129946416524888).

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

121310201302312 is a wasteful number, since it uses less digits than its factorization.

121310201302312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59787 (or 59783 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 121310201302312 its reverse (213203102013121), we get a palindrome (334513303315433).

The spelling of 121310201302312 in words is "one hundred twenty-one trillion, three hundred ten billion, two hundred one million, three hundred two thousand, three hundred twelve".