15203042105 has 8 divisors (see below), whose sum is σ = 18688617864. Its totient is φ = 11865788800.

The previous prime is 15203042087. The next prime is 15203042219. The reversal of 15203042105 is 50124030251.

It can be written as a sum of positive squares in 4 ways, for example, as 1138489 + 15201903616 = 1067^2 + 123296^2 .

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

It is not a de Polignac number, because 15203042105 - 2¹⁰ = 15203041081 is a prime.

It is a super-2 number, since 2×15203042105² (a number of 21 digits) contains 22 as substring.

It is a Duffinian 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, 37080386 + ... + 37080795.

It is an arithmetic number, because the mean of its divisors is an integer number (2336077233).

Almost surely, 2^15203042105 is an apocalyptic number.

It is an amenable number.

15203042105 is a deficient number, since it is larger than the sum of its proper divisors (3485575759).

15203042105 is an equidigital number, since it uses as much as digits as its factorization.

15203042105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74161227.

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 15203042105 its reverse (50124030251), we get a palindrome (65327072356).

The spelling of 15203042105 in words is "fifteen billion, two hundred three million, forty-two thousand, one hundred five".