201131020203 has 16 divisors (see below), whose sum is σ = 275882553600. Its totient is φ = 130245519456.

The previous prime is 201131020201. The next prime is 201131020217. The reversal of 201131020203 is 302020131102.

It is not a de Polignac number, because 201131020203 - 2¹ = 201131020201 is a prime.

It is a super-2 number, since 2×201131020203² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201131020201) 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, 1446025 + ... + 1579002.

It is an arithmetic number, because the mean of its divisors is an integer number (17242659600).

Almost surely, 2^201131020203 is an apocalyptic number.

201131020203 is a deficient number, since it is larger than the sum of its proper divisors (74751533397).

201131020203 is a wasteful number, since it uses less digits than its factorization.

201131020203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3025666.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 201131020203 its reverse (302020131102), we get a palindrome (503151151305).

The spelling of 201131020203 in words is "two hundred one billion, one hundred thirty-one million, twenty thousand, two hundred three".