13155451333242 has 16 divisors (see below), whose sum is σ = 27858602823552. Its totient is φ = 4127200418240.

The previous prime is 13155451333187. The next prime is 13155451333247. The reversal of 13155451333242 is 24233315455131.

It is a junction number, because it is equal to n+sod(n) for n = 13155451333194 and 13155451333203.

It is not an unprimeable number, because it can be changed into a prime (13155451333247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64487506434 + ... + 64487506637.

It is an arithmetic number, because the mean of its divisors is an integer number (1741162676472).

Almost surely, 2^{13155451333242} is an apocalyptic number.

13155451333242 is an abundant number, since it is smaller than the sum of its proper divisors (14703151490310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13155451333242 is a wasteful number, since it uses less digits than its factorization.

13155451333242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128975013093.

The product of its digits is 648000, while the sum is 42.

Adding to 13155451333242 its reverse (24233315455131), we get a palindrome (37388766788373).

The spelling of 13155451333242 in words is "thirteen trillion, one hundred fifty-five billion, four hundred fifty-one million, three hundred thirty-three thousand, two hundred forty-two".