203013124313 has 4 divisors (see below), whose sum is σ = 214955072820. Its totient is φ = 191071175808.

The previous prime is 203013124267. The next prime is 203013124361. The reversal of 203013124313 is 313421310302.

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 101845871689 + 101167252624 = 319133^2 + 318068^2 .

It is a cyclic number.

It is not a de Polignac number, because 203013124313 - 2³⁴ = 185833255129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203013124373) 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, 5970974228 + ... + 5970974261.

It is an arithmetic number, because the mean of its divisors is an integer number (53738768205).

Almost surely, 2^203013124313 is an apocalyptic number.

It is an amenable number.

203013124313 is a deficient number, since it is larger than the sum of its proper divisors (11941948507).

203013124313 is a wasteful number, since it uses less digits than its factorization.

203013124313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11941948506.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 203013124313 its reverse (313421310302), we get a palindrome (516434434615).

The spelling of 203013124313 in words is "two hundred three billion, thirteen million, one hundred twenty-four thousand, three hundred thirteen".