15313042142 has 4 divisors (see below), whose sum is σ = 22969563216. Its totient is φ = 7656521070.

The previous prime is 15313042141. The next prime is 15313042177. The reversal of 15313042142 is 24124031351.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15313042141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3828260534 + ... + 3828260537.

It is an arithmetic number, because the mean of its divisors is an integer number (5742390804).

Almost surely, 2^15313042142 is an apocalyptic number.

15313042142 is a deficient number, since it is larger than the sum of its proper divisors (7656521074).

15313042142 is an equidigital number, since it uses as much as digits as its factorization.

15313042142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7656521073.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 15313042142 its reverse (24124031351), we get a palindrome (39437073493).

The spelling of 15313042142 in words is "fifteen billion, three hundred thirteen million, forty-two thousand, one hundred forty-two".