102352135438 has 32 divisors (see below), whose sum is σ = 177910294464. Its totient is φ = 43256097792.

The previous prime is 102352135411. The next prime is 102352135499. The reversal of 102352135438 is 834531253201.

It is a happy number.

It is a super-3 number, since 3×102352135438³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102352135397 and 102352135406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 240120 + ... + 512212.

It is an arithmetic number, because the mean of its divisors is an integer number (5559696702).

Almost surely, 2^102352135438 is an apocalyptic number.

102352135438 is a deficient number, since it is larger than the sum of its proper divisors (75558159026).

102352135438 is a wasteful number, since it uses less digits than its factorization.

102352135438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272476.

The product of its (nonzero) digits is 86400, while the sum is 37.

Adding to 102352135438 its reverse (834531253201), we get a palindrome (936883388639).

The spelling of 102352135438 in words is "one hundred two billion, three hundred fifty-two million, one hundred thirty-five thousand, four hundred thirty-eight".