102320012 has 12 divisors (see below), whose sum is σ = 181513416. Its totient is φ = 50459040.

The previous prime is 102320011. The next prime is 102320021. The reversal of 102320012 is 210023201.

It is a happy number.

It is a super-4 number, since 4×102320012⁴ (a number of 33 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102319975 and 102320002.

It is not an unprimeable number, because it can be changed into a prime (102320011) 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, 174914 + ... + 175497.

It is an arithmetic number, because the mean of its divisors is an integer number (15126118).

Almost surely, 2^102320012 is an apocalyptic number.

It is an amenable number.

102320012 is a deficient number, since it is larger than the sum of its proper divisors (79193404).

102320012 is a wasteful number, since it uses less digits than its factorization.

102320012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350488 (or 350486 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 102320012 is about 10115.3354862802. The cubic root of 102320012 is about 467.7209905849.

Adding to 102320012 its reverse (210023201), we get a palindrome (312343213).

The spelling of 102320012 in words is "one hundred two million, three hundred twenty thousand, twelve".