102321284 has 12 divisors (see below), whose sum is σ = 192836364. Its totient is φ = 47225184.

The previous prime is 102321277. The next prime is 102321293. The reversal of 102321284 is 482123201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 47886400 + 54434884 = 6920^2 + 7378^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 983807 + ... + 983910.

It is an arithmetic number, because the mean of its divisors is an integer number (16069697).

Almost surely, 2^102321284 is an apocalyptic number.

It is an amenable number.

102321284 is a deficient number, since it is larger than the sum of its proper divisors (90515080).

102321284 is a wasteful number, since it uses less digits than its factorization.

102321284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1967734 (or 1967732 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 102321284 is about 10115.3983609149. The cubic root of 102321284 is about 467.7229287480.

Adding to 102321284 its reverse (482123201), we get a palindrome (584444485).

The spelling of 102321284 in words is "one hundred two million, three hundred twenty-one thousand, two hundred eighty-four".