381244100052331 has 4 divisors (see below), whose sum is σ = 383986863362200. Its totient is φ = 378501336742464.

The previous prime is 381244100052323. The next prime is 381244100052433. The reversal of 381244100052331 is 133250001442183.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 381244100052331 - 2³ = 381244100052323 is a prime.

It is a super-2 number, since 2×381244100052331² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381244100952331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1371381654726 + ... + 1371381655003.

It is an arithmetic number, because the mean of its divisors is an integer number (95996715840550).

Almost surely, 2^{381244100052331} is an apocalyptic number.

381244100052331 is a deficient number, since it is larger than the sum of its proper divisors (2742763309869).

381244100052331 is a wasteful number, since it uses less digits than its factorization.

381244100052331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2742763309868.

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 381244100052331 in words is "three hundred eighty-one trillion, two hundred forty-four billion, one hundred million, fifty-two thousand, three hundred thirty-one".