1203213013 has 4 divisors (see below), whose sum is σ = 1242026368. Its totient is φ = 1164399660.

The previous prime is 1203212999. The next prime is 1203213017. The reversal of 1203213013 is 3103123021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1203213013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203213017) 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, 19406631 + ... + 19406692.

It is an arithmetic number, because the mean of its divisors is an integer number (310506592).

Almost surely, 2^1203213013 is an apocalyptic number.

It is an amenable number.

1203213013 is a deficient number, since it is larger than the sum of its proper divisors (38813355).

1203213013 is an equidigital number, since it uses as much as digits as its factorization.

1203213013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38813354.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1203213013 is about 34687.3609979197. The cubic root of 1203213013 is about 1063.6061505757.

Adding to 1203213013 its reverse (3103123021), we get a palindrome (4306336034).

The spelling of 1203213013 in words is "one billion, two hundred three million, two hundred thirteen thousand, thirteen".