102435123442 has 8 divisors (see below), whose sum is σ = 153660431232. Its totient is φ = 51214979700.

The previous prime is 102435123409. The next prime is 102435123493. The reversal of 102435123442 is 244321534201.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 1241034 + ... + 1320997.

It is an arithmetic number, because the mean of its divisors is an integer number (19207553904).

Almost surely, 2^102435123442 is an apocalyptic number.

102435123442 is a deficient number, since it is larger than the sum of its proper divisors (51225307790).

102435123442 is a wasteful number, since it uses less digits than its factorization.

102435123442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2582024.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 102435123442 its reverse (244321534201), we get a palindrome (346756657643).

The spelling of 102435123442 in words is "one hundred two billion, four hundred thirty-five million, one hundred twenty-three thousand, four hundred forty-two".