10312231320 has 48 divisors (see below), whose sum is σ = 33514752960. Its totient is φ = 2749928256.

The previous prime is 10312231301. The next prime is 10312231327. The reversal of 10312231320 is 2313221301.

10312231320 is a `hidden beast` number, since 1 + 0 + 312 + 2 + 31 + 320 = 666.

It is a super-2 number, since 2×10312231320² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 10312231293 and 10312231302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10312231327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14322184 + ... + 14322903.

It is an arithmetic number, because the mean of its divisors is an integer number (698224020).

Almost surely, 2^10312231320 is an apocalyptic number.

10312231320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10312231320 is an abundant number, since it is smaller than the sum of its proper divisors (23202521640).

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

10312231320 is a wasteful number, since it uses less digits than its factorization.

10312231320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28645104 (or 28645097 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 10312231320 its reverse (2313221301), we get a palindrome (12625452621).

The spelling of 10312231320 in words is "ten billion, three hundred twelve million, two hundred thirty-one thousand, three hundred twenty".