102134321042 has 16 divisors (see below), whose sum is σ = 172159525440. Its totient is φ = 45089398992.

The previous prime is 102134321011. The next prime is 102134321057. The reversal of 102134321042 is 240123431201.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 102134320999 and 102134321017.

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, 85395992 + ... + 85397187.

It is an arithmetic number, because the mean of its divisors is an integer number (10759970340).

Almost surely, 2^102134321042 is an apocalyptic number.

102134321042 is a deficient number, since it is larger than the sum of its proper divisors (70025204398).

102134321042 is a wasteful number, since it uses less digits than its factorization.

102134321042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170793217.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 102134321042 its reverse (240123431201), we get a palindrome (342257752243).

The spelling of 102134321042 in words is "one hundred two billion, one hundred thirty-four million, three hundred twenty-one thousand, forty-two".