15212142103 has 8 divisors (see below), whose sum is σ = 15471902160. Its totient is φ = 14952446400.

The previous prime is 15212142073. The next prime is 15212142107. The reversal of 15212142103 is 30124121251.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15212142103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15212142107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 925053 + ... + 941353.

It is an arithmetic number, because the mean of its divisors is an integer number (1933987770).

Almost surely, 2^15212142103 is an apocalyptic number.

15212142103 is a deficient number, since it is larger than the sum of its proper divisors (259760057).

15212142103 is a wasteful number, since it uses less digits than its factorization.

15212142103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32177.

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 15212142103 its reverse (30124121251), we get a palindrome (45336263354).

The spelling of 15212142103 in words is "fifteen billion, two hundred twelve million, one hundred forty-two thousand, one hundred three".