13204120451242 has 32 divisors (see below), whose sum is σ = 22858543816704. Its totient is φ = 5603437796400.

The previous prime is 13204120451239. The next prime is 13204120451287. The reversal of 13204120451242 is 24215402140231.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10057234 + ... + 11294077.

It is an arithmetic number, because the mean of its divisors is an integer number (714329494272).

Almost surely, 2^{13204120451242} is an apocalyptic number.

13204120451242 is a deficient number, since it is larger than the sum of its proper divisors (9654423365462).

13204120451242 is a wasteful number, since it uses less digits than its factorization.

13204120451242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21351754.

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 13204120451242 its reverse (24215402140231), we get a palindrome (37419522591473).

The spelling of 13204120451242 in words is "thirteen trillion, two hundred four billion, one hundred twenty million, four hundred fifty-one thousand, two hundred forty-two".