1231012310313 has 4 divisors (see below), whose sum is σ = 1641349747088. Its totient is φ = 820674873540.

The previous prime is 1231012310299. The next prime is 1231012310327. The reversal of 1231012310313 is 3130132101321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1231012310299) and next prime (1231012310327).

It is not a de Polignac number, because 1231012310313 - 2⁸ = 1231012310057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1231012310313.

It is not an unprimeable number, because it can be changed into a prime (1231012310383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205168718383 + ... + 205168718388.

It is an arithmetic number, because the mean of its divisors is an integer number (410337436772).

Almost surely, 2^{1231012310313} is an apocalyptic number.

It is an amenable number.

1231012310313 is a deficient number, since it is larger than the sum of its proper divisors (410337436775).

1231012310313 is an equidigital number, since it uses as much as digits as its factorization.

1231012310313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410337436774.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1231012310313 its reverse (3130132101321), we get a palindrome (4361144411634).

The spelling of 1231012310313 in words is "one trillion, two hundred thirty-one billion, twelve million, three hundred ten thousand, three hundred thirteen".