15315350531442 has 32 divisors (see below), whose sum is σ = 33177584639808. Its totient is φ = 4685176147776.

The previous prime is 15315350531441. The next prime is 15315350531543. The reversal of 15315350531442 is 24413505351351.

It is a junction number, because it is equal to n+sod(n) for n = 15315350531394 and 15315350531403.

It is not an unprimeable number, because it can be changed into a prime (15315350531441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 567473928 + ... + 567500915.

It is an arithmetic number, because the mean of its divisors is an integer number (1036799519994).

Almost surely, 2^{15315350531442} is an apocalyptic number.

15315350531442 is an abundant number, since it is smaller than the sum of its proper divisors (17862234108366).

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

15315350531442 is a wasteful number, since it uses less digits than its factorization.

15315350531442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134975034.

The product of its (nonzero) digits is 540000, while the sum is 42.

Adding to 15315350531442 its reverse (24413505351351), we get a palindrome (39728855882793).

The spelling of 15315350531442 in words is "fifteen trillion, three hundred fifteen billion, three hundred fifty million, five hundred thirty-one thousand, four hundred forty-two".