523123379 has 2 divisors, whose sum is σ = 523123380. Its totient is φ = 523123378.

The previous prime is 523123297. The next prime is 523123397. The reversal of 523123379 is 973321325.

Together with next prime (523123397) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-523123379 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (523126379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261561689 + 261561690.

It is an arithmetic number, because the mean of its divisors is an integer number (261561690).

Almost surely, 2^523123379 is an apocalyptic number.

523123379 is a deficient number, since it is larger than the sum of its proper divisors (1).

523123379 is an equidigital number, since it uses as much as digits as its factorization.

523123379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34020, while the sum is 35.

The square root of 523123379 is about 22871.8905864819. The cubic root of 523123379 is about 805.7519709826.

The spelling of 523123379 in words is "five hundred twenty-three million, one hundred twenty-three thousand, three hundred seventy-nine".