2131342144 has 14 divisors (see below), whose sum is σ = 4229382194. Its totient is φ = 1065671040.

The previous prime is 2131342141. The next prime is 2131342177. The reversal of 2131342144 is 4412431312.

It can be written as a sum of positive squares in only one way, i.e., 1360724544 + 770617600 = 36888^2 + 27760^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131342141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16651047 + ... + 16651174.

Almost surely, 2^2131342144 is an apocalyptic number.

It is an amenable number.

2131342144 is a deficient number, since it is larger than the sum of its proper divisors (2098040050).

2131342144 is an equidigital number, since it uses as much as digits as its factorization.

2131342144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33302233 (or 33302223 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 2131342144 is about 46166.4612462337. The cubic root of 2131342144 is about 1286.9185397658.

Adding to 2131342144 its reverse (4412431312), we get a palindrome (6543773456).

The spelling of 2131342144 in words is "two billion, one hundred thirty-one million, three hundred forty-two thousand, one hundred forty-four".