102111543422 has 16 divisors (see below), whose sum is σ = 175054545792. Its totient is φ = 43760543640.

The previous prime is 102111543403. The next prime is 102111543439. The reversal of 102111543422 is 224345111201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 102111543391 and 102111543400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 340397 + ... + 565767.

It is an arithmetic number, because the mean of its divisors is an integer number (10940909112).

Almost surely, 2^102111543422 is an apocalyptic number.

102111543422 is a deficient number, since it is larger than the sum of its proper divisors (72943002370).

102111543422 is a wasteful number, since it uses less digits than its factorization.

102111543422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257743.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 102111543422 its reverse (224345111201), we get a palindrome (326456654623).

The spelling of 102111543422 in words is "one hundred two billion, one hundred eleven million, five hundred forty-three thousand, four hundred twenty-two".