13418281431 has 24 divisors (see below), whose sum is σ = 19593400320. Its totient is φ = 8848141776.

The previous prime is 13418281427. The next prime is 13418281439.

13418281431 is a `hidden beast` number, since 1 + 341 + 8 + 281 + 4 + 31 = 666.

13418281431 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 13418281431 - 2² = 13418281427 is a prime.

It is a super-2 number, since 2×13418281431² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13418281439) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 814090 + ... + 830408.

It is an arithmetic number, because the mean of its divisors is an integer number (816391680).

Almost surely, 2^13418281431 is an apocalyptic number.

13418281431 is a deficient number, since it is larger than the sum of its proper divisors (6175118889).

13418281431 is a wasteful number, since it uses less digits than its factorization.

13418281431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17315 (or 17312 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

It can be divided in two parts, 13418 and 281431, that added together give a square (294849 = 543²).

The spelling of 13418281431 in words is "thirteen billion, four hundred eighteen million, two hundred eighty-one thousand, four hundred thirty-one".