381299423 has 2 divisors, whose sum is σ = 381299424. Its totient is φ = 381299422.

The previous prime is 381299419. The next prime is 381299431. The reversal of 381299423 is 324992183.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 381299423 - 2² = 381299419 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381292423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190649711 + 190649712.

It is an arithmetic number, because the mean of its divisors is an integer number (190649712).

Almost surely, 2^381299423 is an apocalyptic number.

381299423 is a deficient number, since it is larger than the sum of its proper divisors (1).

381299423 is an equidigital number, since it uses as much as digits as its factorization.

381299423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 41.

The square root of 381299423 is about 19526.8897420967. The cubic root of 381299423 is about 725.1403124387.

The spelling of 381299423 in words is "three hundred eighty-one million, two hundred ninety-nine thousand, four hundred twenty-three".