2101312130 has 16 divisors (see below), whose sum is σ = 3783901824. Its totient is φ = 840182640.

The previous prime is 2101312127. The next prime is 2101312133. The reversal of 2101312130 is 312131012.

It is an interprime number because it is at equal distance from previous prime (2101312127) and next prime (2101312133).

It is not an unprimeable number, because it can be changed into a prime (2101312133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16202 + ... + 66821.

It is an arithmetic number, because the mean of its divisors is an integer number (236493864).

Almost surely, 2^2101312130 is an apocalyptic number.

2101312130 is a deficient number, since it is larger than the sum of its proper divisors (1682589694).

2101312130 is a wasteful number, since it uses less digits than its factorization.

2101312130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85561.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2101312130 is about 45840.0712259482. The cubic root of 2101312130 is about 1280.8458215748.

Adding to 2101312130 its reverse (312131012), we get a palindrome (2413443142).

The spelling of 2101312130 in words is "two billion, one hundred one million, three hundred twelve thousand, one hundred thirty".