31122022330 has 64 divisors (see below), whose sum is σ = 64357908480. Its totient is φ = 10614659904.

The previous prime is 31122022303. The next prime is 31122022333. The reversal of 31122022330 is 3322022113.

It is a junction number, because it is equal to n+sod(n) for n = 31122022298 and 31122022307.

It is not an unprimeable number, because it can be changed into a prime (31122022333) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12237039 + ... + 12239581.

It is an arithmetic number, because the mean of its divisors is an integer number (1005592320).

Almost surely, 2^31122022330 is an apocalyptic number.

31122022330 is an abundant number, since it is smaller than the sum of its proper divisors (33235886150).

31122022330 is a wasteful number, since it uses less digits than its factorization.

31122022330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3403.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 31122022330 its reverse (3322022113), we get a palindrome (34444044443).

The spelling of 31122022330 in words is "thirty-one billion, one hundred twenty-two million, twenty-two thousand, three hundred thirty".