21032232031331 has 4 divisors (see below), whose sum is σ = 21034321266792. Its totient is φ = 21030142795872.

The previous prime is 21032232031259. The next prime is 21032232031373. The reversal of 21032232031331 is 13313023223012.

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 21032232031331 - 2¹⁰ = 21032232030307 is a prime.

It is a super-2 number, since 2×21032232031331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21032232031331.

It is not an unprimeable number, because it can be changed into a prime (21032232036331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1044602630 + ... + 1044622763.

It is an arithmetic number, because the mean of its divisors is an integer number (5258580316698).

Almost surely, 2^{21032232031331} is an apocalyptic number.

21032232031331 is a deficient number, since it is larger than the sum of its proper divisors (2089235461).

21032232031331 is a wasteful number, since it uses less digits than its factorization.

21032232031331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2089235460.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 21032232031331 its reverse (13313023223012), we get a palindrome (34345255254343).

The spelling of 21032232031331 in words is "twenty-one trillion, thirty-two billion, two hundred thirty-two million, thirty-one thousand, three hundred thirty-one".