381053923 has 2 divisors, whose sum is σ = 381053924. Its totient is φ = 381053922.

The previous prime is 381053921. The next prime is 381053983. The reversal of 381053923 is 329350183.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 381053923 - 2¹ = 381053921 is a prime.

Together with 381053921, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (381053921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190526961 + 190526962.

It is an arithmetic number, because the mean of its divisors is an integer number (190526962).

Almost surely, 2^381053923 is an apocalyptic number.

381053923 is a deficient number, since it is larger than the sum of its proper divisors (1).

381053923 is an equidigital number, since it uses as much as digits as its factorization.

381053923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 381053923 is about 19520.6025265615. The cubic root of 381053923 is about 724.9846515974.

The spelling of 381053923 in words is "three hundred eighty-one million, fifty-three thousand, nine hundred twenty-three".