203020100213 has 4 divisors (see below), whose sum is σ = 232022971680. Its totient is φ = 174017228748.

The previous prime is 203020100207. The next prime is 203020100333. The reversal of 203020100213 is 312001020302.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 203020100213 - 2²⁶ = 202952991349 is a prime.

It is a super-2 number, since 2×203020100213² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203020100203) 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, 14501435723 + ... + 14501435736.

It is an arithmetic number, because the mean of its divisors is an integer number (58005742920).

Almost surely, 2^203020100213 is an apocalyptic number.

It is an amenable number.

203020100213 is a deficient number, since it is larger than the sum of its proper divisors (29002871467).

203020100213 is an equidigital number, since it uses as much as digits as its factorization.

203020100213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29002871466.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 203020100213 its reverse (312001020302), we get a palindrome (515021120515).

The spelling of 203020100213 in words is "two hundred three billion, twenty million, one hundred thousand, two hundred thirteen".