15040142323 has 2 divisors, whose sum is σ = 15040142324. Its totient is φ = 15040142322.

The previous prime is 15040142309. The next prime is 15040142399. The reversal of 15040142323 is 32324104051.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15040142323 - 2⁵ = 15040142291 is a prime.

It is not a weakly prime, because it can be changed into another prime (15040143323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7520071161 + 7520071162.

It is an arithmetic number, because the mean of its divisors is an integer number (7520071162).

Almost surely, 2^15040142323 is an apocalyptic number.

15040142323 is a deficient number, since it is larger than the sum of its proper divisors (1).

15040142323 is an equidigital number, since it uses as much as digits as its factorization.

15040142323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 15040142323 its reverse (32324104051), we get a palindrome (47364246374).

The spelling of 15040142323 in words is "fifteen billion, forty million, one hundred forty-two thousand, three hundred twenty-three".