102423123234 has 96 divisors (see below), whose sum is σ = 239026670064. Its totient is φ = 31578992640.

The previous prime is 102423123193. The next prime is 102423123247. The reversal of 102423123234 is 432321324201.

102423123234 is a `hidden beast` number, since 1 + 0 + 2 + 423 + 1 + 2 + 3 + 234 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 4138992225 + 98284131009 = 64335^2 + 313503^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 102423123198 and 102423123207.

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 47 ways as a sum of consecutive naturals, for example, 42799942 + ... + 42802334.

Almost surely, 2^102423123234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102423123234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119513335032).

102423123234 is an abundant number, since it is smaller than the sum of its proper divisors (136603546830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102423123234 is a wasteful number, since it uses less digits than its factorization.

102423123234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4772 (or 4769 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 102423123234 its reverse (432321324201), we get a palindrome (534744447435).

The spelling of 102423123234 in words is "one hundred two billion, four hundred twenty-three million, one hundred twenty-three thousand, two hundred thirty-four".