2533520321231 has 4 divisors (see below), whose sum is σ = 2533532028912. Its totient is φ = 2533508613552.

The previous prime is 2533520321131. The next prime is 2533520321243. The reversal of 2533520321231 is 1321230253352.

2533520321231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2533520321231 - 2³⁰ = 2532446579407 is a prime.

It is a super-2 number, since 2×2533520321231² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2533520321291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5523011 + ... + 5964116.

It is an arithmetic number, because the mean of its divisors is an integer number (633383007228).

Almost surely, 2^{2533520321231} is an apocalyptic number.

2533520321231 is a deficient number, since it is larger than the sum of its proper divisors (11707681).

2533520321231 is a wasteful number, since it uses less digits than its factorization.

2533520321231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11707680.

The product of its (nonzero) digits is 32400, while the sum is 32.

Adding to 2533520321231 its reverse (1321230253352), we get a palindrome (3854750574583).

The spelling of 2533520321231 in words is "two trillion, five hundred thirty-three billion, five hundred twenty million, three hundred twenty-one thousand, two hundred thirty-one".