2011231331032 has 96 divisors (see below), whose sum is σ = 4802569788240. Its totient is φ = 780807552000.

The previous prime is 2011231330991. The next prime is 2011231331033. The reversal of 2011231331032 is 2301331321102.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 2011231330994 and 2011231331012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011231331033) 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, 381732 + ... + 2041612.

Almost surely, 2^{2011231331032} is an apocalyptic number.

2011231331032 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2011231331032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2401284894120).

2011231331032 is an abundant number, since it is smaller than the sum of its proper divisors (2791338457208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2011231331032 is a wasteful number, since it uses less digits than its factorization.

2011231331032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660193 (or 1660182 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 2011231331032 its reverse (2301331321102), we get a palindrome (4312562652134).

The spelling of 2011231331032 in words is "two trillion, eleven billion, two hundred thirty-one million, three hundred thirty-one thousand, thirty-two".