31023222330 has 32 divisors (see below), whose sum is σ = 74471747328. Its totient is φ = 8271080000.

The previous prime is 31023222281. The next prime is 31023222331. The reversal of 31023222330 is 3322232013.

It is a super-2 number, since 2×31023222330² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31023222297 and 31023222306.

It is not an unprimeable number, because it can be changed into a prime (31023222331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33700 + ... + 251360.

It is an arithmetic number, because the mean of its divisors is an integer number (2327242104).

Almost surely, 2^31023222330 is an apocalyptic number.

31023222330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31023222330 is an abundant number, since it is smaller than the sum of its proper divisors (43448524998).

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

31023222330 is a wasteful number, since it uses less digits than its factorization.

31023222330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222422.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 31023222330 its reverse (3322232013), we get a palindrome (34345454343).

The spelling of 31023222330 in words is "thirty-one billion, twenty-three million, two hundred twenty-two thousand, three hundred thirty".