1321233102 has 24 divisors (see below), whose sum is σ = 3271625136. Its totient is φ = 377495136.

The previous prime is 1321233061. The next prime is 1321233103. The reversal of 1321233102 is 2013321231.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321233103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5242863 + ... + 5243114.

It is an arithmetic number, because the mean of its divisors is an integer number (136317714).

Almost surely, 2^1321233102 is an apocalyptic number.

1321233102 is an abundant number, since it is smaller than the sum of its proper divisors (1950392034).

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

1321233102 is a wasteful number, since it uses less digits than its factorization.

1321233102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10485992 (or 10485989 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1321233102 is about 36348.7702955685. The cubic root of 1321233102 is about 1097.3027862943.

Adding to 1321233102 its reverse (2013321231), we get a palindrome (3334554333).

The spelling of 1321233102 in words is "one billion, three hundred twenty-one million, two hundred thirty-three thousand, one hundred two".