13113233231431 has 2 divisors, whose sum is σ = 13113233231432. Its totient is φ = 13113233231430.

The previous prime is 13113233231389. The next prime is 13113233231443. The reversal of 13113233231431 is 13413233231131.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13113233231431 is a prime.

It is a super-2 number, since 2×13113233231431² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13113233231393 and 13113233231402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13113233232431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6556616615715 + 6556616615716.

It is an arithmetic number, because the mean of its divisors is an integer number (6556616615716).

Almost surely, 2^{13113233231431} is an apocalyptic number.

13113233231431 is a deficient number, since it is larger than the sum of its proper divisors (1).

13113233231431 is an equidigital number, since it uses as much as digits as its factorization.

13113233231431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 31.

Adding to 13113233231431 its reverse (13413233231131), we get a palindrome (26526466462562).

The spelling of 13113233231431 in words is "thirteen trillion, one hundred thirteen billion, two hundred thirty-three million, two hundred thirty-one thousand, four hundred thirty-one".