15231144042 has 32 divisors (see below), whose sum is σ = 35318597760. Its totient is φ = 4856306400.

The previous prime is 15231144031. The next prime is 15231144043. The reversal of 15231144042 is 24044113251.

15231144042 is a `hidden beast` number, since 15 + 231 + 14 + 404 + 2 = 666.

15231144042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 15231143997 and 15231144015.

It is not an unprimeable number, because it can be changed into a prime (15231144043) 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, 6130459 + ... + 6132942.

It is an arithmetic number, because the mean of its divisors is an integer number (1103706180).

Almost surely, 2^15231144042 is an apocalyptic number.

15231144042 is an abundant number, since it is smaller than the sum of its proper divisors (20087453718).

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

15231144042 is a wasteful number, since it uses less digits than its factorization.

15231144042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12263435 (or 12263429 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 15231144042 its reverse (24044113251), we get a palindrome (39275257293).

The spelling of 15231144042 in words is "fifteen billion, two hundred thirty-one million, one hundred forty-four thousand, forty-two".