13143456431 has 8 divisors (see below), whose sum is σ = 15116770080. Its totient is φ = 11194062048.

The previous prime is 13143456427. The next prime is 13143456503. The reversal of 13143456431 is 13465434131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13143456431 - 2² = 13143456427 is a prime.

It is a super-2 number, since 2×13143456431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13143456391 and 13143456400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13143456031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5978636 + ... + 5980833.

It is an arithmetic number, because the mean of its divisors is an integer number (1889596260).

Almost surely, 2^13143456431 is an apocalyptic number.

13143456431 is a deficient number, since it is larger than the sum of its proper divisors (1973313649).

13143456431 is a wasteful number, since it uses less digits than its factorization.

13143456431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11959633.

The product of its digits is 51840, while the sum is 35.

The spelling of 13143456431 in words is "thirteen billion, one hundred forty-three million, four hundred fifty-six thousand, four hundred thirty-one".