31012330122 has 48 divisors (see below), whose sum is σ = 68558263488. Its totient is φ = 10129250880.

The previous prime is 31012330099. The next prime is 31012330147. The reversal of 31012330122 is 22103321013.

31012330122 is a `hidden beast` number, since 310 + 1 + 2 + 330 + 1 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 31012330095 and 31012330104.

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, 133878 + ... + 282750.

It is an arithmetic number, because the mean of its divisors is an integer number (1428297156).

Almost surely, 2^31012330122 is an apocalyptic number.

31012330122 is an abundant number, since it is smaller than the sum of its proper divisors (37545933366).

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

31012330122 is a wasteful number, since it uses less digits than its factorization.

31012330122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149115 (or 149112 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 31012330122 its reverse (22103321013), we get a palindrome (53115651135).

The spelling of 31012330122 in words is "thirty-one billion, twelve million, three hundred thirty thousand, one hundred twenty-two".