10321011220 has 48 divisors (see below), whose sum is σ = 23355924480. Its totient is φ = 3808457856.

The previous prime is 10321011193. The next prime is 10321011247. The reversal of 10321011220 is 2211012301.

It is an interprime number because it is at equal distance from previous prime (10321011193) and next prime (10321011247).

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 10321011220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 436461 + ... + 459499.

It is an arithmetic number, because the mean of its divisors is an integer number (486581760).

Almost surely, 2^10321011220 is an apocalyptic number.

10321011220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10321011220 is an abundant number, since it is smaller than the sum of its proper divisors (13034913260).

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

10321011220 is a wasteful number, since it uses less digits than its factorization.

10321011220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24784 (or 24782 counting only the distinct ones).

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

Adding to 10321011220 its reverse (2211012301), we get a palindrome (12532023521).

The spelling of 10321011220 in words is "ten billion, three hundred twenty-one million, eleven thousand, two hundred twenty".