102123123234 has 64 divisors (see below), whose sum is σ = 225111011328. Its totient is φ = 30883662480.

The previous prime is 102123123233. The next prime is 102123123253. The reversal of 102123123234 is 432321321201.

It is not an unprimeable number, because it can be changed into a prime (102123123233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4004247 + ... + 4029669.

It is an arithmetic number, because the mean of its divisors is an integer number (3517359552).

Almost surely, 2^102123123234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102123123234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112555505664).

102123123234 is an abundant number, since it is smaller than the sum of its proper divisors (122987888094).

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

102123123234 is a wasteful number, since it uses less digits than its factorization.

102123123234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25964 (or 25942 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 102123123234 its reverse (432321321201), we get a palindrome (534444444435).

The spelling of 102123123234 in words is "one hundred two billion, one hundred twenty-three million, one hundred twenty-three thousand, two hundred thirty-four".