381012827031 has 24 divisors (see below), whose sum is σ = 554805800640. Its totient is φ = 251961163776.

The previous prime is 381012827023. The next prime is 381012827057. The reversal of 381012827031 is 130728210183.

381012827031 is a `hidden beast` number, since 381 + 0 + 1 + 2 + 8 + 270 + 3 + 1 = 666.

It is not a de Polignac number, because 381012827031 - 2³ = 381012827023 is a prime.

It is a super-2 number, since 2×381012827031² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381012827081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 208191 + ... + 897423.

It is an arithmetic number, because the mean of its divisors is an integer number (23116908360).

Almost surely, 2^381012827031 is an apocalyptic number.

381012827031 is a deficient number, since it is larger than the sum of its proper divisors (173792973609).

381012827031 is a wasteful number, since it uses less digits than its factorization.

381012827031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689735 (or 689732 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The spelling of 381012827031 in words is "three hundred eighty-one billion, twelve million, eight hundred twenty-seven thousand, thirty-one".