10311201220 has 96 divisors (see below), whose sum is σ = 22507849728. Its totient is φ = 3965488512.

The previous prime is 10311201217. The next prime is 10311201253. The reversal of 10311201220 is 2210211301.

It is a self number, because there is not a number n which added to its sum of digits gives 10311201220.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22079427 + ... + 22079893.

It is an arithmetic number, because the mean of its divisors is an integer number (234456768).

Almost surely, 2^10311201220 is an apocalyptic number.

10311201220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10311201220 is an abundant number, since it is smaller than the sum of its proper divisors (12196648508).

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

10311201220 is a wasteful number, since it uses less digits than its factorization.

10311201220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889 (or 887 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 10311201220 its reverse (2210211301), we get a palindrome (12521412521).

The spelling of 10311201220 in words is "ten billion, three hundred eleven million, two hundred one thousand, two hundred twenty".