102231340442 has 32 divisors (see below), whose sum is σ = 191585157120. Its totient is φ = 39747210480.

The previous prime is 102231340439. The next prime is 102231340459. The reversal of 102231340442 is 244043132201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 619178 + ... + 766709.

It is an arithmetic number, because the mean of its divisors is an integer number (5987036160).

Almost surely, 2^102231340442 is an apocalyptic number.

102231340442 is a deficient number, since it is larger than the sum of its proper divisors (89353816678).

102231340442 is a wasteful number, since it uses less digits than its factorization.

102231340442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1386386.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 102231340442 its reverse (244043132201), we get a palindrome (346274472643).

The spelling of 102231340442 in words is "one hundred two billion, two hundred thirty-one million, three hundred forty thousand, four hundred forty-two".