2101312132 has 48 divisors (see below), whose sum is σ = 3995671680. Its totient is φ = 963067392.

The previous prime is 2101312127. The next prime is 2101312133. The reversal of 2101312132 is 2312131012.

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 15 ways as a sum of consecutive naturals, for example, 1282818 + ... + 1284454.

It is an arithmetic number, because the mean of its divisors is an integer number (83243160).

Almost surely, 2^2101312132 is an apocalyptic number.

It is an amenable number.

2101312132 is a deficient number, since it is larger than the sum of its proper divisors (1894359548).

2101312132 is a wasteful number, since it uses less digits than its factorization.

2101312132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2140 (or 2138 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2101312132 is about 45840.0712477631. The cubic root of 2101312132 is about 1280.8458219812.

Adding to 2101312132 its reverse (2312131012), we get a palindrome (4413443144).

The spelling of 2101312132 in words is "two billion, one hundred one million, three hundred twelve thousand, one hundred thirty-two".