102432140105 has 8 divisors (see below), whose sum is σ = 124135584264. Its totient is φ = 81134368000.

The previous prime is 102432140101. The next prime is 102432140123. The reversal of 102432140105 is 501041234201.

It can be written as a sum of positive squares in 4 ways, for example, as 70492374016 + 31939766089 = 265504^2 + 178717^2 .

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

It is not a de Polignac number, because 102432140105 - 2² = 102432140101 is a prime.

It is a super-2 number, since 2×102432140105² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (102432140101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101417456 + ... + 101418465.

It is an arithmetic number, because the mean of its divisors is an integer number (15516948033).

Almost surely, 2^102432140105 is an apocalyptic number.

It is an amenable number.

102432140105 is a deficient number, since it is larger than the sum of its proper divisors (21703444159).

102432140105 is a wasteful number, since it uses less digits than its factorization.

102432140105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202836027.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 102432140105 its reverse (501041234201), we get a palindrome (603473374306).

The spelling of 102432140105 in words is "one hundred two billion, four hundred thirty-two million, one hundred forty thousand, one hundred five".