2131243044 has 36 divisors (see below), whose sum is σ = 5784804144. Its totient is φ = 608926416.

The previous prime is 2131243021. The next prime is 2131243067. The reversal of 2131243044 is 4403421312.

It is an interprime number because it is at equal distance from previous prime (2131243021) and next prime (2131243067).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1811694 + ... + 1812869.

It is an arithmetic number, because the mean of its divisors is an integer number (160689004).

Almost surely, 2^2131243044 is an apocalyptic number.

It is an amenable number.

2131243044 is an abundant number, since it is smaller than the sum of its proper divisors (3653561100).

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

2131243044 is a wasteful number, since it uses less digits than its factorization.

2131243044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3624584 (or 3624575 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 2131243044 is about 46165.3879437832. The cubic root of 2131243044 is about 1286.8985937106.

Adding to 2131243044 its reverse (4403421312), we get a palindrome (6534664356).

The spelling of 2131243044 in words is "two billion, one hundred thirty-one million, two hundred forty-three thousand, forty-four".