1231014329917 has 4 divisors (see below), whose sum is σ = 1231017480540. Its totient is φ = 1231011179296.

The previous prime is 1231014329903. The next prime is 1231014329981. The reversal of 1231014329917 is 7199234101321.

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

It can be written as a sum of positive squares in 2 ways, for example, as 468219958756 + 762794371161 = 684266^2 + 873381^2 .

It is a cyclic number.

It is not a de Polignac number, because 1231014329917 - 2⁷ = 1231014329789 is a prime.

It is a super-2 number, since 2×1231014329917² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231014329317) 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, 889792 + ... + 1803817.

It is an arithmetic number, because the mean of its divisors is an integer number (307754370135).

Almost surely, 2^{1231014329917} is an apocalyptic number.

It is an amenable number.

1231014329917 is a deficient number, since it is larger than the sum of its proper divisors (3150623).

1231014329917 is an equidigital number, since it uses as much as digits as its factorization.

1231014329917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3150622.

The product of its (nonzero) digits is 81648, while the sum is 43.

The spelling of 1231014329917 in words is "one trillion, two hundred thirty-one billion, fourteen million, three hundred twenty-nine thousand, nine hundred seventeen".