1203001213 has 4 divisors (see below), whose sum is σ = 1232342748. Its totient is φ = 1173659680.

The previous prime is 1203001211. The next prime is 1203001271. The reversal of 1203001213 is 3121003021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 590587204 + 612414009 = 24302^2 + 24747^2 .

It is a cyclic number.

It is not a de Polignac number, because 1203001213 - 2¹ = 1203001211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1203001193 and 1203001202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203001211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14670706 + ... + 14670787.

It is an arithmetic number, because the mean of its divisors is an integer number (308085687).

Almost surely, 2^1203001213 is an apocalyptic number.

It is an amenable number.

1203001213 is a deficient number, since it is larger than the sum of its proper divisors (29341535).

1203001213 is an equidigital number, since it uses as much as digits as its factorization.

1203001213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29341534.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1203001213 is about 34684.3078783475. The cubic root of 1203001213 is about 1063.5437385174.

Adding to 1203001213 its reverse (3121003021), we get a palindrome (4324004234).

The spelling of 1203001213 in words is "one billion, two hundred three million, one thousand, two hundred thirteen".