31121303094 has 96 divisors (see below), whose sum is σ = 79045761600. Its totient is φ = 8665203456.

The previous prime is 31121303053. The next prime is 31121303111. The reversal of 31121303094 is 49030312113.

It is a super-2 number, since 2×31121303094² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 979384 + ... + 1010660.

It is an arithmetic number, because the mean of its divisors is an integer number (823393350).

Almost surely, 2^31121303094 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31121303094, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39522880800).

31121303094 is an abundant number, since it is smaller than the sum of its proper divisors (47924458506).

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

31121303094 is a wasteful number, since it uses less digits than its factorization.

31121303094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31494 (or 31491 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The spelling of 31121303094 in words is "thirty-one billion, one hundred twenty-one million, three hundred three thousand, ninety-four".