31022232030 has 96 divisors (see below), whose sum is σ = 82436050944. Its totient is φ = 8090478528.

The previous prime is 31022232029. The next prime is 31022232047. The reversal of 31022232030 is 3023222013.

It is a happy number.

31022232030 is a `hidden beast` number, since 310 + 2 + 2 + 2 + 320 + 30 = 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 = 31022231994 and 31022232012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9333949 + ... + 9337271.

It is an arithmetic number, because the mean of its divisors is an integer number (858708864).

Almost surely, 2^31022232030 is an apocalyptic number.

31022232030 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 31022232030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41218025472).

31022232030 is an abundant number, since it is smaller than the sum of its proper divisors (51413818914).

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

31022232030 is a wasteful number, since it uses less digits than its factorization.

31022232030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5590 (or 5587 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 31022232030 its reverse (3023222013), we get a palindrome (34045454043).

The spelling of 31022232030 in words is "thirty-one billion, twenty-two million, two hundred thirty-two thousand, thirty".