203011013331201 has 4 divisors (see below), whose sum is σ = 270681351108272. Its totient is φ = 135340675554132.

The previous prime is 203011013331179. The next prime is 203011013331209. The reversal of 203011013331201 is 102133310110302.

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 not a de Polignac number, because 203011013331201 - 2²⁷ = 203010879113473 is a prime.

It is a super-2 number, since 2×203011013331201² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203011013331209) 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, 33835168888531 + ... + 33835168888536.

It is an arithmetic number, because the mean of its divisors is an integer number (67670337777068).

Almost surely, 2^{203011013331201} is an apocalyptic number.

It is an amenable number.

203011013331201 is a deficient number, since it is larger than the sum of its proper divisors (67670337777071).

203011013331201 is an equidigital number, since it uses as much as digits as its factorization.

203011013331201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67670337777070.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 203011013331201 its reverse (102133310110302), we get a palindrome (305144323441503).

The spelling of 203011013331201 in words is "two hundred three trillion, eleven billion, thirteen million, three hundred thirty-one thousand, two hundred one".