2102310020 has 24 divisors (see below), whose sum is σ = 4422222168. Its totient is φ = 839520000.

The previous prime is 2102310019. The next prime is 2102310097. The reversal of 2102310020 is 200132012.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 541585984 + 1560724036 = 23272^2 + 39506^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2102309983 and 2102310010.

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, 75431 + ... + 99470.

It is an arithmetic number, because the mean of its divisors is an integer number (184259257).

Almost surely, 2^2102310020 is an apocalyptic number.

2102310020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102310020 is an abundant number, since it is smaller than the sum of its proper divisors (2319912148).

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

2102310020 is a wasteful number, since it uses less digits than its factorization.

2102310020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175511 (or 175509 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2102310020 is about 45850.9544066424. The cubic root of 2102310020 is about 1281.0485426821.

Adding to 2102310020 its reverse (200132012), we get a palindrome (2302442032).

The spelling of 2102310020 in words is "two billion, one hundred two million, three hundred ten thousand, twenty".