15103211231245 has 8 divisors (see below), whose sum is σ = 18235042763616. Its totient is φ = 12008442794256.

The previous prime is 15103211231231. The next prime is 15103211231249. The reversal of 15103211231245 is 54213211230151.

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

It is a cyclic number.

It is not a de Polignac number, because 15103211231245 - 2¹⁹ = 15103210706957 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 (15103211231249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9265772947 + ... + 9265774576.

It is an arithmetic number, because the mean of its divisors is an integer number (2279380345452).

Almost surely, 2^{15103211231245} is an apocalyptic number.

It is an amenable number.

15103211231245 is a deficient number, since it is larger than the sum of its proper divisors (3131831532371).

15103211231245 is a wasteful number, since it uses less digits than its factorization.

15103211231245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18531547691.

The product of its (nonzero) digits is 7200, while the sum is 31.

Adding to 15103211231245 its reverse (54213211230151), we get a palindrome (69316422461396).

The spelling of 15103211231245 in words is "fifteen trillion, one hundred three billion, two hundred eleven million, two hundred thirty-one thousand, two hundred forty-five".