102123223312 has 80 divisors (see below), whose sum is σ = 225378824832. Its totient is φ = 44373288960.

The previous prime is 102123223249. The next prime is 102123223313. The reversal of 102123223312 is 213322321201.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (102123223313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7186198 + ... + 7200394.

Almost surely, 2^102123223312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102123223312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112689412416).

102123223312 is an abundant number, since it is smaller than the sum of its proper divisors (123255601520).

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

102123223312 is a wasteful number, since it uses less digits than its factorization.

102123223312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16016 (or 16010 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 102123223312 its reverse (213322321201), we get a palindrome (315445544513).

The spelling of 102123223312 in words is "one hundred two billion, one hundred twenty-three million, two hundred twenty-three thousand, three hundred twelve".