13130021242 has 8 divisors (see below), whose sum is σ = 21210034356. Its totient is φ = 6060009792.

The previous prime is 13130021207. The next prime is 13130021287. The reversal of 13130021242 is 24212003131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11683664281 + 1446356961 = 108091^2 + 38031^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252500383 + ... + 252500434.

Almost surely, 2^13130021242 is an apocalyptic number.

13130021242 is a deficient number, since it is larger than the sum of its proper divisors (8080013114).

13130021242 is a wasteful number, since it uses less digits than its factorization.

13130021242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505000832.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 13130021242 its reverse (24212003131), we get a palindrome (37342024373).

The spelling of 13130021242 in words is "thirteen billion, one hundred thirty million, twenty-one thousand, two hundred forty-two".