13201431431 has 2 divisors, whose sum is σ = 13201431432. Its totient is φ = 13201431430.

The previous prime is 13201431403. The next prime is 13201431511. The reversal of 13201431431 is 13413410231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13201431431 - 2⁶ = 13201431367 is a prime.

It is a super-2 number, since 2×13201431431² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13201431397 and 13201431406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13201434431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6600715715 + 6600715716.

It is an arithmetic number, because the mean of its divisors is an integer number (6600715716).

Almost surely, 2^13201431431 is an apocalyptic number.

13201431431 is a deficient number, since it is larger than the sum of its proper divisors (1).

13201431431 is an equidigital number, since it uses as much as digits as its factorization.

13201431431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 13201431431 its reverse (13413410231), we get a palindrome (26614841662).

The spelling of 13201431431 in words is "thirteen billion, two hundred one million, four hundred thirty-one thousand, four hundred thirty-one".