2012011023231 has 24 divisors (see below), whose sum is σ = 3247769463120. Its totient is φ = 1189659139200.

The previous prime is 2012011023229. The next prime is 2012011023299. The reversal of 2012011023231 is 1323201102102.

2012011023231 is a `hidden beast` number, since 201 + 201 + 1 + 0 + 232 + 31 = 666.

It is not a de Polignac number, because 2012011023231 - 2¹ = 2012011023229 is a prime.

It is a super-2 number, since 2×2012011023231² (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 (2012011023221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 247841596 + ... + 247849713.

It is an arithmetic number, because the mean of its divisors is an integer number (135323727630).

Almost surely, 2^{2012011023231} is an apocalyptic number.

2012011023231 is a deficient number, since it is larger than the sum of its proper divisors (1235758439889).

2012011023231 is a wasteful number, since it uses less digits than its factorization.

2012011023231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495691367 (or 495691364 counting only the distinct ones).

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

Adding to 2012011023231 its reverse (1323201102102), we get a palindrome (3335212125333).

The spelling of 2012011023231 in words is "two trillion, twelve billion, eleven million, twenty-three thousand, two hundred thirty-one".