102310123220 has 24 divisors (see below), whose sum is σ = 214869241608. Its totient is φ = 40920624000.

The previous prime is 102310123183. The next prime is 102310123259. The reversal of 102310123220 is 22321013201.

It can be written as a sum of positive squares in 4 ways, for example, as 10988909584 + 91321213636 = 104828^2 + 302194^2 .

It is a super-2 number, since 2×102310123220² (a number of 23 digits) contains 22 as substring.

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, 38090 + ... + 453950.

It is an arithmetic number, because the mean of its divisors is an integer number (8952885067).

Almost surely, 2^102310123220 is an apocalyptic number.

102310123220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102310123220 is an abundant number, since it is smaller than the sum of its proper divisors (112559118388).

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

102310123220 is a wasteful number, since it uses less digits than its factorization.

102310123220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428171 (or 428169 counting only the distinct ones).

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

Adding to 102310123220 its reverse (22321013201), we get a palindrome (124631136421).

The spelling of 102310123220 in words is "one hundred two billion, three hundred ten million, one hundred twenty-three thousand, two hundred twenty".