2131231234 has 16 divisors (see below), whose sum is σ = 3493597536. Its totient is φ = 967039200.

The previous prime is 2131231229. The next prime is 2131231241. The reversal of 2131231234 is 4321321312.

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

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, 72267 + ... + 97390.

It is an arithmetic number, because the mean of its divisors is an integer number (218349846).

Almost surely, 2^2131231234 is an apocalyptic number.

2131231234 is a deficient number, since it is larger than the sum of its proper divisors (1362366302).

2131231234 is a wasteful number, since it uses less digits than its factorization.

2131231234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170241.

The product of its digits is 864, while the sum is 22.

The square root of 2131231234 is about 46165.2600339259. The cubic root of 2131231234 is about 1286.8962166470.

Adding to 2131231234 its reverse (4321321312), we get a palindrome (6452552546).

The spelling of 2131231234 in words is "two billion, one hundred thirty-one million, two hundred thirty-one thousand, two hundred thirty-four".