2131263112 has 16 divisors (see below), whose sum is σ = 4359402000. Its totient is φ = 968755920.

The previous prime is 2131263109. The next prime is 2131263119. The reversal of 2131263112 is 2113621312.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (2131263119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12109362 + ... + 12109537.

It is an arithmetic number, because the mean of its divisors is an integer number (272462625).

Almost surely, 2^2131263112 is an apocalyptic number.

2131263112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2131263112 is an abundant number, since it is smaller than the sum of its proper divisors (2228138888).

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

2131263112 is a wasteful number, since it uses less digits than its factorization.

2131263112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24218916 (or 24218912 counting only the distinct ones).

The product of its digits is 432, while the sum is 22.

The square root of 2131263112 is about 46165.6052922519. The cubic root of 2131263112 is about 1286.9026328870.

Adding to 2131263112 its reverse (2113621312), we get a palindrome (4244884424).

The spelling of 2131263112 in words is "two billion, one hundred thirty-one million, two hundred sixty-three thousand, one hundred twelve".