31010104220 has 24 divisors (see below), whose sum is σ = 65351341104. Its totient is φ = 12360208896.

The previous prime is 31010104217. The next prime is 31010104247. The reversal of 31010104220 is 2240101013.

It is a junction number, because it is equal to n+sod(n) for n = 31010104195 and 31010104204.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2733749 + ... + 2745068.

It is an arithmetic number, because the mean of its divisors is an integer number (2722972546).

Almost surely, 2^31010104220 is an apocalyptic number.

It is an amenable number.

31010104220 is an abundant number, since it is smaller than the sum of its proper divisors (34341236884).

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

31010104220 is a wasteful number, since it uses less digits than its factorization.

31010104220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5479109 (or 5479107 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 31010104220 its reverse (2240101013), we get a palindrome (33250205233).

The spelling of 31010104220 in words is "thirty-one billion, ten million, one hundred four thousand, two hundred twenty".