310121121012 has 12 divisors (see below), whose sum is σ = 723615949056. Its totient is φ = 103373707000.

The previous prime is 310121120927. The next prime is 310121121019. The reversal of 310121121012 is 210121121013.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 310121120982 and 310121121000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (310121121019) 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, 12921713364 + ... + 12921713387.

It is an arithmetic number, because the mean of its divisors is an integer number (60301329088).

Almost surely, 2^310121121012 is an apocalyptic number.

It is an amenable number.

310121121012 is an abundant number, since it is smaller than the sum of its proper divisors (413494828044).

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

310121121012 is a wasteful number, since it uses less digits than its factorization.

310121121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25843426758 (or 25843426756 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 310121121012 its reverse (210121121013), we get a palindrome (520242242025).

Subtracting from 310121121012 its reverse (210121121013), we obtain a palindrome (99999999999).

The spelling of 310121121012 in words is "three hundred ten billion, one hundred twenty-one million, one hundred twenty-one thousand, twelve".