11231512204533 has 64 divisors (see below), whose sum is σ = 15507732344832. Its totient is φ = 7228246417920.

The previous prime is 11231512204499. The next prime is 11231512204541. The reversal of 11231512204533 is 33540221513211.

It is a happy number.

11231512204533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11231512204533 - 2¹⁸ = 11231511942389 is a prime.

It is a super-2 number, since 2×11231512204533² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11231512204494 and 11231512204503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11231512204573) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 586768143 + ... + 586787283.

It is an arithmetic number, because the mean of its divisors is an integer number (242308317888).

Almost surely, 2^{11231512204533} is an apocalyptic number.

It is an amenable number.

11231512204533 is a deficient number, since it is larger than the sum of its proper divisors (4276220140299).

11231512204533 is a wasteful number, since it uses less digits than its factorization.

11231512204533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19634.

The product of its (nonzero) digits is 21600, while the sum is 33.

Adding to 11231512204533 its reverse (33540221513211), we get a palindrome (44771733717744).

The spelling of 11231512204533 in words is "eleven trillion, two hundred thirty-one billion, five hundred twelve million, two hundred four thousand, five hundred thirty-three".