15213124273 has 2 divisors, whose sum is σ = 15213124274. Its totient is φ = 15213124272.

The previous prime is 15213124177. The next prime is 15213124279. The reversal of 15213124273 is 37242131251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13147603569 + 2065520704 = 114663^2 + 45448^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15213124273 is a prime.

It is not a weakly prime, because it can be changed into another prime (15213124279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7606562136 + 7606562137.

It is an arithmetic number, because the mean of its divisors is an integer number (7606562137).

Almost surely, 2^15213124273 is an apocalyptic number.

It is an amenable number.

15213124273 is a deficient number, since it is larger than the sum of its proper divisors (1).

15213124273 is an equidigital number, since it uses as much as digits as its factorization.

15213124273 is an evil number, because the sum of its binary digits is even.

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

The spelling of 15213124273 in words is "fifteen billion, two hundred thirteen million, one hundred twenty-four thousand, two hundred seventy-three".