1231369413143 has 2 divisors, whose sum is σ = 1231369413144. Its totient is φ = 1231369413142.

The previous prime is 1231369413107. The next prime is 1231369413167. The reversal of 1231369413143 is 3413149631321.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1231369413143 - 2⁸ = 1231369412887 is a prime.

It is a super-2 number, since 2×1231369413143² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1231369413143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1231369413193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615684706571 + 615684706572.

It is an arithmetic number, because the mean of its divisors is an integer number (615684706572).

Almost surely, 2^{1231369413143} is an apocalyptic number.

1231369413143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231369413143 is an equidigital number, since it uses as much as digits as its factorization.

1231369413143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 41.

The spelling of 1231369413143 in words is "one trillion, two hundred thirty-one billion, three hundred sixty-nine million, four hundred thirteen thousand, one hundred forty-three".