11331134020 has 24 divisors (see below), whose sum is σ = 23823183384. Its totient is φ = 4527158016.

The previous prime is 11331133943. The next prime is 11331134029. The reversal of 11331134020 is 2043113311.

It can be written as a sum of positive squares in 4 ways, for example, as 1982564676 + 9348569344 = 44526^2 + 96688^2 .

It is not an unprimeable number, because it can be changed into a prime (11331134029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 313407 + ... + 347686.

It is an arithmetic number, because the mean of its divisors is an integer number (992632641).

Almost surely, 2^11331134020 is an apocalyptic number.

11331134020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11331134020 is an abundant number, since it is smaller than the sum of its proper divisors (12492049364).

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

11331134020 is a wasteful number, since it uses less digits than its factorization.

11331134020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661959 (or 661957 counting only the distinct ones).

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

Adding to 11331134020 its reverse (2043113311), we get a palindrome (13374247331).

The spelling of 11331134020 in words is "eleven billion, three hundred thirty-one million, one hundred thirty-four thousand, twenty".