15225001123 has 2 divisors, whose sum is σ = 15225001124. Its totient is φ = 15225001122.

The previous prime is 15225001111. The next prime is 15225001193. The reversal of 15225001123 is 32110052251.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15225001123 - 2²⁵ = 15191446691 is a prime.

It is a super-2 number, since 2×15225001123² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15225001094 and 15225001103.

It is not a weakly prime, because it can be changed into another prime (15225001193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7612500561 + 7612500562.

It is an arithmetic number, because the mean of its divisors is an integer number (7612500562).

Almost surely, 2^15225001123 is an apocalyptic number.

15225001123 is a deficient number, since it is larger than the sum of its proper divisors (1).

15225001123 is an equidigital number, since it uses as much as digits as its factorization.

15225001123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 15225001123 its reverse (32110052251), we get a palindrome (47335053374).

The spelling of 15225001123 in words is "fifteen billion, two hundred twenty-five million, one thousand, one hundred twenty-three".