381121121182 has 32 divisors (see below), whose sum is σ = 616543915680. Its totient is φ = 176100318720.

The previous prime is 381121121149. The next prime is 381121121197. The reversal of 381121121182 is 281121121183.

It is a super-2 number, since 2×381121121182² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12631218 + ... + 12661354.

It is an arithmetic number, because the mean of its divisors is an integer number (19266997365).

Almost surely, 2^381121121182 is an apocalyptic number.

381121121182 is a deficient number, since it is larger than the sum of its proper divisors (235422794498).

381121121182 is a wasteful number, since it uses less digits than its factorization.

381121121182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38316.

The product of its digits is 1536, while the sum is 31.

Subtracting from 381121121182 its reverse (281121121183), we obtain a palindrome (99999999999).

The spelling of 381121121182 in words is "three hundred eighty-one billion, one hundred twenty-one million, one hundred twenty-one thousand, one hundred eighty-two".