15042113215 has 8 divisors (see below), whose sum is σ = 18063229248. Its totient is φ = 12025228320.

The previous prime is 15042113209. The next prime is 15042113231. The reversal of 15042113215 is 51231124051.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-15042113215 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15042113215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1049956 + ... + 1064185.

It is an arithmetic number, because the mean of its divisors is an integer number (2257903656).

Almost surely, 2^15042113215 is an apocalyptic number.

15042113215 is a deficient number, since it is larger than the sum of its proper divisors (3021116033).

15042113215 is a wasteful number, since it uses less digits than its factorization.

15042113215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2115569.

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 15042113215 its reverse (51231124051), we get a palindrome (66273237266).

The spelling of 15042113215 in words is "fifteen billion, forty-two million, one hundred thirteen thousand, two hundred fifteen".