203313423044413 has 16 divisors (see below), whose sum is σ = 227441091588480. Its totient is φ = 180135850003200.

The previous prime is 203313423044339. The next prime is 203313423044449. The reversal of 203313423044413 is 314440324313302.

It is a cyclic number.

It is not a de Polignac number, because 203313423044413 - 2⁴⁵ = 168129050955581 is a prime.

It is a super-2 number, since 2×203313423044413² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203313423048413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232658928 + ... + 233531161.

It is an arithmetic number, because the mean of its divisors is an integer number (14215068224280).

Almost surely, 2^{203313423044413} is an apocalyptic number.

It is an amenable number.

203313423044413 is a deficient number, since it is larger than the sum of its proper divisors (24127668544067).

203313423044413 is a wasteful number, since it uses less digits than its factorization.

203313423044413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466191108.

The product of its (nonzero) digits is 248832, while the sum is 37.

Adding to 203313423044413 its reverse (314440324313302), we get a palindrome (517753747357715).

The spelling of 203313423044413 in words is "two hundred three trillion, three hundred thirteen billion, four hundred twenty-three million, forty-four thousand, four hundred thirteen".