10312113220 has 24 divisors (see below), whose sum is σ = 22022481600. Its totient is φ = 4054932192.

The previous prime is 10312113211. The next prime is 10312113223. The reversal of 10312113220 is 2231121301.

It is a junction number, because it is equal to n+sod(n) for n = 10312113194 and 10312113203.

It is not an unprimeable number, because it can be changed into a prime (10312113223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4368360 + ... + 4370719.

It is an arithmetic number, because the mean of its divisors is an integer number (917603400).

Almost surely, 2^10312113220 is an apocalyptic number.

10312113220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10312113220 is an abundant number, since it is smaller than the sum of its proper divisors (11710368380).

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

10312113220 is a wasteful number, since it uses less digits than its factorization.

10312113220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8739147 (or 8739145 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 10312113220 its reverse (2231121301), we get a palindrome (12543234521).

The spelling of 10312113220 in words is "ten billion, three hundred twelve million, one hundred thirteen thousand, two hundred twenty".