102311012220 has 48 divisors (see below), whose sum is σ = 286533313920. Its totient is φ = 27276986176.

The previous prime is 102311012201. The next prime is 102311012239. The reversal of 102311012220 is 22210113201.

It is an interprime number because it is at equal distance from previous prime (102311012201) and next prime (102311012239).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 102311012220.

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, 94951 + ... + 462209.

It is an arithmetic number, because the mean of its divisors is an integer number (5969444040).

Almost surely, 2^102311012220 is an apocalyptic number.

102311012220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102311012220 is an abundant number, since it is smaller than the sum of its proper divisors (184222301700).

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

102311012220 is a wasteful number, since it uses less digits than its factorization.

102311012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371914 (or 371912 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 102311012220 its reverse (22210113201), we get a palindrome (124521125421).

The spelling of 102311012220 in words is "one hundred two billion, three hundred eleven million, twelve thousand, two hundred twenty".