1203331313 has 8 divisors (see below), whose sum is σ = 1272249120. Its totient is φ = 1134972000.

The previous prime is 1203331267. The next prime is 1203331321. The reversal of 1203331313 is 3131333021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1203331313 - 2¹⁴ = 1203314929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1203331013) 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, 135188 + ... + 143813.

It is an arithmetic number, because the mean of its divisors is an integer number (159031140).

Almost surely, 2^1203331313 is an apocalyptic number.

It is an amenable number.

1203331313 is a deficient number, since it is larger than the sum of its proper divisors (68917807).

1203331313 is a wasteful number, since it uses less digits than its factorization.

1203331313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279247.

The product of its (nonzero) digits is 486, while the sum is 20.

The square root of 1203331313 is about 34689.0661880657. The cubic root of 1203331313 is about 1063.6410073807.

Adding to 1203331313 its reverse (3131333021), we get a palindrome (4334664334).

The spelling of 1203331313 in words is "one billion, two hundred three million, three hundred thirty-one thousand, three hundred thirteen".