102542342305 has 32 divisors (see below), whose sum is σ = 137821178880. Its totient is φ = 72749940480.

The previous prime is 102542342291. The next prime is 102542342311. The reversal of 102542342305 is 503243245201.

It is not a de Polignac number, because 102542342305 - 2⁹ = 102542341793 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130225 + ... + 471214.

It is an arithmetic number, because the mean of its divisors is an integer number (4306911840).

Almost surely, 2^102542342305 is an apocalyptic number.

It is an amenable number.

102542342305 is a deficient number, since it is larger than the sum of its proper divisors (35278836575).

102542342305 is a wasteful number, since it uses less digits than its factorization.

102542342305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601561.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 102542342305 its reverse (503243245201), we get a palindrome (605785587506).

The spelling of 102542342305 in words is "one hundred two billion, five hundred forty-two million, three hundred forty-two thousand, three hundred five".