15204607123 has 2 divisors, whose sum is σ = 15204607124. Its totient is φ = 15204607122.

The previous prime is 15204607057. The next prime is 15204607129. The reversal of 15204607123 is 32170640251.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15204607123 is a prime.

It is not a weakly prime, because it can be changed into another prime (15204607129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7602303561 + 7602303562.

It is an arithmetic number, because the mean of its divisors is an integer number (7602303562).

Almost surely, 2^15204607123 is an apocalyptic number.

15204607123 is a deficient number, since it is larger than the sum of its proper divisors (1).

15204607123 is an equidigital number, since it uses as much as digits as its factorization.

15204607123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 31.

The spelling of 15204607123 in words is "fifteen billion, two hundred four million, six hundred seven thousand, one hundred twenty-three".