2011210023231 has 12 divisors (see below), whose sum is σ = 2905118723208. Its totient is φ = 1340789338224.

The previous prime is 2011210023191. The next prime is 2011210023233. The reversal of 2011210023231 is 1323200121102.

2011210023231 is a `hidden beast` number, since 201 + 1 + 210 + 0 + 23 + 231 = 666.

It is not a de Polignac number, because 2011210023231 - 2⁷ = 2011210023103 is a prime.

It is a super-2 number, since 2×2011210023231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011210023233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 690145 + ... + 2121018.

It is an arithmetic number, because the mean of its divisors is an integer number (242093226934).

Almost surely, 2^{2011210023231} is an apocalyptic number.

2011210023231 is a deficient number, since it is larger than the sum of its proper divisors (893908699977).

2011210023231 is a wasteful number, since it uses less digits than its factorization.

2011210023231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2890662 (or 2890659 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 2011210023231 its reverse (1323200121102), we get a palindrome (3334410144333).

The spelling of 2011210023231 in words is "two trillion, eleven billion, two hundred ten million, twenty-three thousand, two hundred thirty-one".