31103132223320 has 32 divisors (see below), whose sum is σ = 69983247557520. Its totient is φ = 12441039546240.

The previous prime is 31103132223281. The next prime is 31103132223343. The reversal of 31103132223320 is 2332223130113.

It is a self number, because there is not a number n which added to its sum of digits gives 31103132223320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4294766 + ... + 8980605.

Almost surely, 2^{31103132223320} is an apocalyptic number.

It is an amenable number.

31103132223320 is an abundant number, since it is smaller than the sum of its proper divisors (38880115334200).

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

31103132223320 is a wasteful number, since it uses less digits than its factorization.

31103132223320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13333955 (or 13333951 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 31103132223320 its reverse (2332223130113), we get a palindrome (33435355353433).

The spelling of 31103132223320 in words is "thirty-one trillion, one hundred three billion, one hundred thirty-two million, two hundred twenty-three thousand, three hundred twenty".