31022030130 has 128 divisors (see below), whose sum is σ = 91762384896. Its totient is φ = 6536160000.

The previous prime is 31022030111. The next prime is 31022030161. The reversal of 31022030130 is 3103022013.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2042665 + ... + 2057795.

It is an arithmetic number, because the mean of its divisors is an integer number (716893632).

Almost surely, 2^31022030130 is an apocalyptic number.

31022030130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 31022030130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45881192448).

31022030130 is an abundant number, since it is smaller than the sum of its proper divisors (60740354766).

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

31022030130 is a wasteful number, since it uses less digits than its factorization.

31022030130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15912.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 31022030130 its reverse (3103022013), we get a palindrome (34125052143).

The spelling of 31022030130 in words is "thirty-one billion, twenty-two million, thirty thousand, one hundred thirty".