1202130306 has 24 divisors (see below), whose sum is σ = 2804971260. Its totient is φ = 369886176.

The previous prime is 1202130289. The next prime is 1202130313. The reversal of 1202130306 is 6030312021.

It can be written as a sum of positive squares in 2 ways, for example, as 945009081 + 257121225 = 30741^2 + 16035^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2568421 + ... + 2568888.

Almost surely, 2^1202130306 is an apocalyptic number.

1202130306 is an abundant number, since it is smaller than the sum of its proper divisors (1602840954).

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

1202130306 is a wasteful number, since it uses less digits than its factorization.

1202130306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5137330 (or 5137327 counting only the distinct ones).

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

The square root of 1202130306 is about 34671.7508355145. The cubic root of 1202130306 is about 1063.2870274174.

Adding to 1202130306 its reverse (6030312021), we get a palindrome (7232442327).

The spelling of 1202130306 in words is "one billion, two hundred two million, one hundred thirty thousand, three hundred six".