11020201331 has 16 divisors (see below), whose sum is σ = 11392617600. Its totient is φ = 10654844928.

The previous prime is 11020201319. The next prime is 11020201337. The reversal of 11020201331 is 13310202011.

It is a cyclic number.

It is not a de Polignac number, because 11020201331 - 2²⁶ = 10953092467 is a prime.

It is a super-2 number, since 2×11020201331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11020201337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1224215 + ... + 1233183.

It is an arithmetic number, because the mean of its divisors is an integer number (712038600).

Almost surely, 2^11020201331 is an apocalyptic number.

11020201331 is a deficient number, since it is larger than the sum of its proper divisors (372416269).

11020201331 is an equidigital number, since it uses as much as digits as its factorization.

11020201331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9358.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 11020201331 its reverse (13310202011), we get a palindrome (24330403342).

The spelling of 11020201331 in words is "eleven billion, twenty million, two hundred one thousand, three hundred thirty-one".