1323020212 has 24 divisors (see below), whose sum is σ = 2328285960. Its totient is φ = 657807360.

The previous prime is 1323020207. The next prime is 1323020213. The reversal of 1323020212 is 2120203231.

It can be written as a sum of positive squares in 4 ways, for example, as 3587236 + 1319432976 = 1894^2 + 36324^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323020213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 620364 + ... + 622492.

It is an arithmetic number, because the mean of its divisors is an integer number (97011915).

Almost surely, 2^1323020212 is an apocalyptic number.

It is an amenable number.

1323020212 is a deficient number, since it is larger than the sum of its proper divisors (1005265748).

1323020212 is a wasteful number, since it uses less digits than its factorization.

1323020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2931 (or 2929 counting only the distinct ones).

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

The square root of 1323020212 is about 36373.3448008291. The cubic root of 1323020212 is about 1097.7973034461.

Adding to 1323020212 its reverse (2120203231), we get a palindrome (3443223443).

The spelling of 1323020212 in words is "one billion, three hundred twenty-three million, twenty thousand, two hundred twelve".