13202331242 has 4 divisors (see below), whose sum is σ = 19803496866. Its totient is φ = 6601165620.

The previous prime is 13202331193. The next prime is 13202331277. The reversal of 13202331242 is 24213320231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24213320231 = 2531 ⋅9566701.

It can be written as a sum of positive squares in only one way, i.e., 6875560561 + 6326770681 = 82919^2 + 79541^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3300582809 + ... + 3300582812.

Almost surely, 2^13202331242 is an apocalyptic number.

13202331242 is a deficient number, since it is larger than the sum of its proper divisors (6601165624).

13202331242 is an equidigital number, since it uses as much as digits as its factorization.

13202331242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6601165623.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 13202331242 its reverse (24213320231), we get a palindrome (37415651473).

The spelling of 13202331242 in words is "thirteen billion, two hundred two million, three hundred thirty-one thousand, two hundred forty-two".