203011213313 has 32 divisors (see below), whose sum is σ = 213540312960. Its totient is φ = 192820953600.

The previous prime is 203011213291. The next prime is 203011213331. The reversal of 203011213313 is 313312110302.

It is a cyclic number.

It is not a de Polignac number, because 203011213313 - 2²⁴ = 202994436097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203011213333) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93166058 + ... + 93168236.

It is an arithmetic number, because the mean of its divisors is an integer number (6673134780).

Almost surely, 2^203011213313 is an apocalyptic number.

It is an amenable number.

203011213313 is a deficient number, since it is larger than the sum of its proper divisors (10529099647).

203011213313 is a wasteful number, since it uses less digits than its factorization.

203011213313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2657.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 203011213313 its reverse (313312110302), we get a palindrome (516323323615).

The spelling of 203011213313 in words is "two hundred three billion, eleven million, two hundred thirteen thousand, three hundred thirteen".