10312123220 has 24 divisors (see below), whose sum is σ = 24749096064. Its totient is φ = 3535585056.

The previous prime is 10312123193. The next prime is 10312123321. The reversal of 10312123220 is 2232121301.

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, 36828872 + ... + 36829151.

It is an arithmetic number, because the mean of its divisors is an integer number (1031212336).

Almost surely, 2^10312123220 is an apocalyptic number.

10312123220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10312123220 is an abundant number, since it is smaller than the sum of its proper divisors (14436972844).

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

10312123220 is a wasteful number, since it uses less digits than its factorization.

10312123220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73658039 (or 73658037 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 10312123220 its reverse (2232121301), we get a palindrome (12544244521).

The spelling of 10312123220 in words is "ten billion, three hundred twelve million, one hundred twenty-three thousand, two hundred twenty".