15111241242 has 32 divisors (see below), whose sum is σ = 30359992320. Its totient is φ = 5014194240.

The previous prime is 15111241241. The next prime is 15111241279. The reversal of 15111241242 is 24214211151.

15111241242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×15111241242² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15111241241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2406567 + ... + 2412837.

It is an arithmetic number, because the mean of its divisors is an integer number (948749760).

Almost surely, 2^15111241242 is an apocalyptic number.

15111241242 is an abundant number, since it is smaller than the sum of its proper divisors (15248751078).

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

15111241242 is a wasteful number, since it uses less digits than its factorization.

15111241242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8038.

The product of its digits is 640, while the sum is 24.

Adding to 15111241242 its reverse (24214211151), we get a palindrome (39325452393).

The spelling of 15111241242 in words is "fifteen billion, one hundred eleven million, two hundred forty-one thousand, two hundred forty-two".