11231021020000 has 120 divisors (see below), whose sum is σ = 27815439960000. Its totient is φ = 4462256832000.

The previous prime is 11231021019943. The next prime is 11231021020003. The reversal of 11231021020000 is 2012013211.

It is a super-2 number, since 2×11231021020000² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11231021020003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1095601 + ... + 4864399.

It is an arithmetic number, because the mean of its divisors is an integer number (231795333000).

Almost surely, 2^{11231021020000} is an apocalyptic number.

11231021020000 is a gapful number since it is divisible by the number (10) 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 11231021020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13907719980000).

11231021020000 is an abundant number, since it is smaller than the sum of its proper divisors (16584418940000).

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

11231021020000 is an equidigital number, since it uses as much as digits as its factorization.

11231021020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3768978 (or 3768955 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 11231021020000 its reverse (2012013211), we get a palindrome (11233033033211).

The spelling of 11231021020000 in words is "eleven trillion, two hundred thirty-one billion, twenty-one million, twenty thousand".