11231232130000 has 50 divisors (see below), whose sum is σ = 27191936134154. Its totient is φ = 4492492848000.

The previous prime is 11231232129977. The next prime is 11231232130009. The reversal of 11231232130000 is 3123213211.

It can be written as a sum of positive squares in 5 ways, for example, as 2509322119056 + 8721910010944 = 1584084^2 + 2953288^2 .

It is a tau number, because it is divible by the number of its divisors (50).

It is a super-2 number, since 2×11231232130000² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11231232130000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11231232130009) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 561551607 + ... + 561571606.

Almost surely, 2^{11231232130000} is an apocalyptic number.

11231232130000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11231232130000 is an abundant number, since it is smaller than the sum of its proper divisors (15960704004154).

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

11231232130000 is an equidigital number, since it uses as much as digits as its factorization.

11231232130000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123123241 (or 1123123220 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 11231232130000 its reverse (3123213211), we get a palindrome (11234355343211).

The spelling of 11231232130000 in words is "eleven trillion, two hundred thirty-one billion, two hundred thirty-two million, one hundred thirty thousand".