1231330010013 has 12 divisors (see below), whose sum is σ = 1783280640960. Its totient is φ = 818720743176.

The previous prime is 1231330009999. The next prime is 1231330010033. The reversal of 1231330010013 is 3100100331321.

It is a happy number.

1231330010013 is a `hidden beast` number, since 1 + 231 + 330 + 0 + 100 + 1 + 3 = 666.

It is not a de Polignac number, because 1231330010013 - 2⁹ = 1231330009501 is a prime.

It is a super-2 number, since 2×1231330010013² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231330010033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 180490581 + ... + 180497402.

It is an arithmetic number, because the mean of its divisors is an integer number (148606720080).

Almost surely, 2^{1231330010013} is an apocalyptic number.

It is an amenable number.

1231330010013 is a deficient number, since it is larger than the sum of its proper divisors (551950630947).

1231330010013 is a wasteful number, since it uses less digits than its factorization.

1231330010013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360988368 (or 360988365 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 1231330010013 its reverse (3100100331321), we get a palindrome (4331430341334).

The spelling of 1231330010013 in words is "one trillion, two hundred thirty-one billion, three hundred thirty million, ten thousand, thirteen".