31330410012220 has 48 divisors (see below), whose sum is σ = 71776168934400. Its totient is φ = 11392710048320.

The previous prime is 31330410012101. The next prime is 31330410012227. The reversal of 31330410012220 is 2221001403313.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 31330410012191 and 31330410012200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31330410012227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14598141 + ... + 16606219.

It is an arithmetic number, because the mean of its divisors is an integer number (1495336852800).

Almost surely, 2^{31330410012220} is an apocalyptic number.

It is an amenable number.

31330410012220 is an abundant number, since it is smaller than the sum of its proper divisors (40445758922180).

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

31330410012220 is a wasteful number, since it uses less digits than its factorization.

31330410012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2079018 (or 2079016 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 31330410012220 its reverse (2221001403313), we get a palindrome (33551411415533).

The spelling of 31330410012220 in words is "thirty-one trillion, three hundred thirty billion, four hundred ten million, twelve thousand, two hundred twenty".