31322003220030 has 64 divisors (see below), whose sum is σ = 76502867890176. Its totient is φ = 8205587040000.

The previous prime is 31322003219989. The next prime is 31322003220049. The reversal of 31322003220030 is 3002230022313.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31322003219979 and 31322003220006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25567246 + ... + 26764305.

It is an arithmetic number, because the mean of its divisors is an integer number (1195357310784).

Almost surely, 2^{31322003220030} is an apocalyptic number.

31322003220030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31322003220030 is an abundant number, since it is smaller than the sum of its proper divisors (45180864670146).

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

31322003220030 is a wasteful number, since it uses less digits than its factorization.

31322003220030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52331913.

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

Adding to 31322003220030 its reverse (3002230022313), we get a palindrome (34324233242343).

The spelling of 31322003220030 in words is "thirty-one trillion, three hundred twenty-two billion, three million, two hundred twenty thousand, thirty".