2131231012 has 24 divisors (see below), whose sum is σ = 3748365432. Its totient is φ = 1060281600.

The previous prime is 2131231001. The next prime is 2131231093. The reversal of 2131231012 is 2101321312.

It can be written as a sum of positive squares in 4 ways, for example, as 1093360356 + 1037870656 = 33066^2 + 32216^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1542562 + ... + 1543942.

It is an arithmetic number, because the mean of its divisors is an integer number (156181893).

Almost surely, 2^2131231012 is an apocalyptic number.

It is an amenable number.

2131231012 is a deficient number, since it is larger than the sum of its proper divisors (1617134420).

2131231012 is a wasteful number, since it uses less digits than its factorization.

2131231012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3039 (or 3037 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2131231012 is about 46165.2576295205. The cubic root of 2131231012 is about 1286.8961719638.

Adding to 2131231012 its reverse (2101321312), we get a palindrome (4232552324).

The spelling of 2131231012 in words is "two billion, one hundred thirty-one million, two hundred thirty-one thousand, twelve".