13431302242 has 8 divisors (see below), whose sum is σ = 20233421676. Its totient is φ = 6686828352.

The previous prime is 13431302233. The next prime is 13431302243. The reversal of 13431302242 is 24220313431.

It can be written as a sum of positive squares in 2 ways, for example, as 11020590441 + 2410711801 = 104979^2 + 49099^2 .

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

It is not an unprimeable number, because it can be changed into a prime (13431302243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14410803 + ... + 14411734.

Almost surely, 2^13431302242 is an apocalyptic number.

13431302242 is a deficient number, since it is larger than the sum of its proper divisors (6802119434).

13431302242 is a wasteful number, since it uses less digits than its factorization.

13431302242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28822772.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 13431302242 its reverse (24220313431), we get a palindrome (37651615673).

The spelling of 13431302242 in words is "thirteen billion, four hundred thirty-one million, three hundred two thousand, two hundred forty-two".