102321232 has 80 divisors (see below), whose sum is σ = 238109760. Its totient is φ = 42080256.

The previous prime is 102321229. The next prime is 102321239. The reversal of 102321232 is 232123201.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102321239) 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, 66423 + ... + 67945.

It is an arithmetic number, because the mean of its divisors is an integer number (2976372).

Almost surely, 2^102321232 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 102321232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119054880).

102321232 is an abundant number, since it is smaller than the sum of its proper divisors (135788528).

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

102321232 is a wasteful number, since it uses less digits than its factorization.

102321232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1580 (or 1574 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 102321232 is about 10115.3957905759. The cubic root of 102321232 is about 467.7228495153.

Adding to 102321232 its reverse (232123201), we get a palindrome (334444433).

The spelling of 102321232 in words is "one hundred two million, three hundred twenty-one thousand, two hundred thirty-two".