15103412281 has 2 divisors, whose sum is σ = 15103412282. Its totient is φ = 15103412280.

The previous prime is 15103412243. The next prime is 15103412293. The reversal of 15103412281 is 18221430151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14451886656 + 651525625 = 120216^2 + 25525^2 .

It is an emirp because it is prime and its reverse (18221430151) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15103412281 - 2²¹ = 15101315129 is a prime.

It is a super-2 number, since 2×15103412281² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (15103412081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7551706140 + 7551706141.

It is an arithmetic number, because the mean of its divisors is an integer number (7551706141).

Almost surely, 2^15103412281 is an apocalyptic number.

It is an amenable number.

15103412281 is a deficient number, since it is larger than the sum of its proper divisors (1).

15103412281 is an equidigital number, since it uses as much as digits as its factorization.

15103412281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 28.

The spelling of 15103412281 in words is "fifteen billion, one hundred three million, four hundred twelve thousand, two hundred eighty-one".