11231020332 has 240 divisors, whose sum is σ = 34419857472. Its totient is φ = 3126988800.

The previous prime is 11231020331. The next prime is 11231020439. The reversal of 11231020332 is 23302013211.

11231020332 is a `hidden beast` number, since 1 + 1 + 2 + 310 + 20 + 332 = 666.

It is a super-2 number, since 2×11231020332² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (11231020331) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 28007332 + ... + 28007732.

Almost surely, 2^11231020332 is an apocalyptic number.

11231020332 is a gapful number since it is divisible by the number (12) 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 11231020332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17209928736).

11231020332 is an abundant number, since it is smaller than the sum of its proper divisors (23188837140).

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

11231020332 is a wasteful number, since it uses less digits than its factorization.

11231020332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710 (or 699 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 11231020332 its reverse (23302013211), we get a palindrome (34533033543).

The spelling of 11231020332 in words is "eleven billion, two hundred thirty-one million, twenty thousand, three hundred thirty-two".