1213020303 has 16 divisors (see below), whose sum is σ = 1789247232. Its totient is φ = 724808000.

The previous prime is 1213020283. The next prime is 1213020317. The reversal of 1213020303 is 3030203121.

It is a cyclic number.

It is not a de Polignac number, because 1213020303 - 2⁸ = 1213020047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213020103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256518 + ... + 261203.

It is an arithmetic number, because the mean of its divisors is an integer number (111827952).

Almost surely, 2^1213020303 is an apocalyptic number.

1213020303 is a deficient number, since it is larger than the sum of its proper divisors (576226929).

1213020303 is a wasteful number, since it uses less digits than its factorization.

1213020303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517806.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 1213020303 is about 34828.4410073147. The cubic root of 1213020303 is about 1066.4881231219.

Adding to 1213020303 its reverse (3030203121), we get a palindrome (4243223424).

The spelling of 1213020303 in words is "one billion, two hundred thirteen million, twenty thousand, three hundred three".