201011333011231 has 4 divisors (see below), whose sum is σ = 201012565548600. Its totient is φ = 201010100473864.

The previous prime is 201011333011133. The next prime is 201011333011241. The reversal of 201011333011231 is 132110333110102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201011333011231 is a prime.

It is a super-2 number, since 2×201011333011231² (a number of 29 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 (201011333011241) 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, 616024021 + ... + 616350238.

It is an arithmetic number, because the mean of its divisors is an integer number (50253141387150).

Almost surely, 2^{201011333011231} is an apocalyptic number.

201011333011231 is a deficient number, since it is larger than the sum of its proper divisors (1232537369).

201011333011231 is a wasteful number, since it uses less digits than its factorization.

201011333011231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232537368.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 201011333011231 its reverse (132110333110102), we get a palindrome (333121666121333).

The spelling of 201011333011231 in words is "two hundred one trillion, eleven billion, three hundred thirty-three million, eleven thousand, two hundred thirty-one".