381121102 has 4 divisors (see below), whose sum is σ = 571681656. Its totient is φ = 190560550.

The previous prime is 381121087. The next prime is 381121141. The reversal of 381121102 is 201121183.

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

It is a self number, because there is not a number n which added to its sum of digits gives 381121102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95280274 + ... + 95280277.

It is an arithmetic number, because the mean of its divisors is an integer number (142920414).

Almost surely, 2^381121102 is an apocalyptic number.

381121102 is a deficient number, since it is larger than the sum of its proper divisors (190560554).

381121102 is a wasteful number, since it uses less digits than its factorization.

381121102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190560553.

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 381121102 is about 19522.3231711802. The cubic root of 381121102 is about 725.0272535137.

Adding to 381121102 its reverse (201121183), we get a palindrome (582242285).

The spelling of 381121102 in words is "three hundred eighty-one million, one hundred twenty-one thousand, one hundred two".