2001032133231 has 24 divisors (see below), whose sum is σ = 2953152321840. Its totient is φ = 1200960445696.

The previous prime is 2001032133227. The next prime is 2001032133241. The reversal of 2001032133231 is 1323312301002.

It is not a de Polignac number, because 2001032133231 - 2² = 2001032133227 is a prime.

It is a super-2 number, since 2×2001032133231² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2001032133198 and 2001032133207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001032133241) 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, 37058016 + ... + 37111973.

It is an arithmetic number, because the mean of its divisors is an integer number (123048013410).

Almost surely, 2^{2001032133231} is an apocalyptic number.

2001032133231 is a deficient number, since it is larger than the sum of its proper divisors (952120188609).

2001032133231 is a wasteful number, since it uses less digits than its factorization.

2001032133231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74170055 (or 74170032 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 2001032133231 its reverse (1323312301002), we get a palindrome (3324344434233).

The spelling of 2001032133231 in words is "two trillion, one billion, thirty-two million, one hundred thirty-three thousand, two hundred thirty-one".