1231716492623 has 4 divisors (see below), whose sum is σ = 1232009692848. Its totient is φ = 1231423292400.

The previous prime is 1231716492557. The next prime is 1231716492647. The reversal of 1231716492623 is 3262946171321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1231716492623 - 2³² = 1227421525327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231716492673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146593811 + ... + 146602212.

It is an arithmetic number, because the mean of its divisors is an integer number (308002423212).

Almost surely, 2^{1231716492623} is an apocalyptic number.

1231716492623 is a deficient number, since it is larger than the sum of its proper divisors (293200225).

1231716492623 is an equidigital number, since it uses as much as digits as its factorization.

1231716492623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293200224.

The product of its digits is 653184, while the sum is 47.

The spelling of 1231716492623 in words is "one trillion, two hundred thirty-one billion, seven hundred sixteen million, four hundred ninety-two thousand, six hundred twenty-three".