15123342253 has 2 divisors, whose sum is σ = 15123342254. Its totient is φ = 15123342252.

The previous prime is 15123342203. The next prime is 15123342263. The reversal of 15123342253 is 35224332151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13624258729 + 1499083524 = 116723^2 + 38718^2 .

It is a cyclic number.

It is not a de Polignac number, because 15123342253 - 2²¹ = 15121245101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15123342203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7561671126 + 7561671127.

It is an arithmetic number, because the mean of its divisors is an integer number (7561671127).

Almost surely, 2^15123342253 is an apocalyptic number.

It is an amenable number.

15123342253 is a deficient number, since it is larger than the sum of its proper divisors (1).

15123342253 is an equidigital number, since it uses as much as digits as its factorization.

15123342253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 31.

The spelling of 15123342253 in words is "fifteen billion, one hundred twenty-three million, three hundred forty-two thousand, two hundred fifty-three".