2331131146 has 4 divisors (see below), whose sum is σ = 3496696722. Its totient is φ = 1165565572.

The previous prime is 2331131113. The next prime is 2331131177. The reversal of 2331131146 is 6411311332.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2016459025 + 314672121 = 44905^2 + 17739^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2331131146.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 582782785 + ... + 582782788.

Almost surely, 2^2331131146 is an apocalyptic number.

2331131146 is a deficient number, since it is larger than the sum of its proper divisors (1165565576).

2331131146 is a wasteful number, since it uses less digits than its factorization.

2331131146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165565575.

The product of its digits is 1296, while the sum is 25.

The square root of 2331131146 is about 48281.7889685128. The cubic root of 2331131146 is about 1325.9350032257.

Adding to 2331131146 its reverse (6411311332), we get a palindrome (8742442478).

The spelling of 2331131146 in words is "two billion, three hundred thirty-one million, one hundred thirty-one thousand, one hundred forty-six".