102120321232 has 20 divisors (see below), whose sum is σ = 198062762656. Its totient is φ = 51007350240.

The previous prime is 102120321169. The next prime is 102120321239. The reversal of 102120321232 is 232123021201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102120321239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3284694 + ... + 3315637.

Almost surely, 2^102120321232 is an apocalyptic number.

It is an amenable number.

102120321232 is a deficient number, since it is larger than the sum of its proper divisors (95942441424).

102120321232 is an equidigital number, since it uses as much as digits as its factorization.

102120321232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6601306 (or 6601300 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 102120321232 its reverse (232123021201), we get a palindrome (334243342433).

The spelling of 102120321232 in words is "one hundred two billion, one hundred twenty million, three hundred twenty-one thousand, two hundred thirty-two".