1231013132012 has 24 divisors (see below), whose sum is σ = 2178069772032. Its totient is φ = 608744739200.

The previous prime is 1231013132003. The next prime is 1231013132033. The reversal of 1231013132012 is 2102313101321.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4524689 + ... + 4789032.

It is an arithmetic number, because the mean of its divisors is an integer number (90752907168).

Almost surely, 2^{1231013132012} is an apocalyptic number.

It is an amenable number.

1231013132012 is a deficient number, since it is larger than the sum of its proper divisors (947056640020).

1231013132012 is a wasteful number, since it uses less digits than its factorization.

1231013132012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9314089 (or 9314087 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1231013132012 its reverse (2102313101321), we get a palindrome (3333326233333).

The spelling of 1231013132012 in words is "one trillion, two hundred thirty-one billion, thirteen million, one hundred thirty-two thousand, twelve".