1615431011423 has 2 divisors, whose sum is σ = 1615431011424. Its totient is φ = 1615431011422.

The previous prime is 1615431011399. The next prime is 1615431011429. The reversal of 1615431011423 is 3241101345161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1615431011423 - 2¹² = 1615431007327 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1615431011423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1615431011429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 807715505711 + 807715505712.

It is an arithmetic number, because the mean of its divisors is an integer number (807715505712).

Almost surely, 2^{1615431011423} is an apocalyptic number.

1615431011423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1615431011423 is an equidigital number, since it uses as much as digits as its factorization.

1615431011423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 32.

Adding to 1615431011423 its reverse (3241101345161), we get a palindrome (4856532356584).

The spelling of 1615431011423 in words is "one trillion, six hundred fifteen billion, four hundred thirty-one million, eleven thousand, four hundred twenty-three".