2102313220 has 24 divisors (see below), whose sum is σ = 5045552064. Its totient is φ = 720793056.

The previous prime is 2102313217. The next prime is 2102313223. The reversal of 2102313220 is 223132012.

It is an interprime number because it is at equal distance from previous prime (2102313217) and next prime (2102313223).

It is a junction number, because it is equal to n+sod(n) for n = 2102313194 and 2102313203.

It is not an unprimeable number, because it can be changed into a prime (2102313223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7508122 + ... + 7508401.

It is an arithmetic number, because the mean of its divisors is an integer number (210231336).

Almost surely, 2^2102313220 is an apocalyptic number.

2102313220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102313220 is an abundant number, since it is smaller than the sum of its proper divisors (2943238844).

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

2102313220 is a wasteful number, since it uses less digits than its factorization.

2102313220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15016539 (or 15016537 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2102313220 is about 45850.9893023040. The cubic root of 2102313220 is about 1281.0491926581.

Adding to 2102313220 its reverse (223132012), we get a palindrome (2325445232).

It can be divided in two parts, 21023 and 13220, that added together give a palindrome (34243).

The spelling of 2102313220 in words is "two billion, one hundred two million, three hundred thirteen thousand, two hundred twenty".