381011323 has 16 divisors (see below), whose sum is σ = 475488000. Its totient is φ = 296604000.

The previous prime is 381011299. The next prime is 381011339. The reversal of 381011323 is 323110183.

It is a de Polignac number, because none of the positive numbers 2^k-381011323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 381011294 and 381011303.

It is not an unprimeable number, because it can be changed into a prime (381011363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113773 + ... + 117073.

It is an arithmetic number, because the mean of its divisors is an integer number (29718000).

Almost surely, 2^381011323 is an apocalyptic number.

381011323 is a deficient number, since it is larger than the sum of its proper divisors (94476677).

381011323 is a wasteful number, since it uses less digits than its factorization.

381011323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4818.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 381011323 is about 19519.5113412196. The cubic root of 381011323 is about 724.9576339889.

The spelling of 381011323 in words is "three hundred eighty-one million, eleven thousand, three hundred twenty-three".