1813372423 has 2 divisors, whose sum is σ = 1813372424. Its totient is φ = 1813372422.

The previous prime is 1813372411. The next prime is 1813372433. The reversal of 1813372423 is 3242733181.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1813372423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1813372403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 906686211 + 906686212.

It is an arithmetic number, because the mean of its divisors is an integer number (906686212).

Almost surely, 2^1813372423 is an apocalyptic number.

1813372423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1813372423 is an equidigital number, since it uses as much as digits as its factorization.

1813372423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 34.

The square root of 1813372423 is about 42583.7107706691. The cubic root of 1813372423 is about 1219.4453321572.

The spelling of 1813372423 in words is "one billion, eight hundred thirteen million, three hundred seventy-two thousand, four hundred twenty-three".