7533242431021 has 4 divisors (see below), whose sum is σ = 7533373367200. Its totient is φ = 7533111494844.

The previous prime is 7533242431009. The next prime is 7533242431061. The reversal of 7533242431021 is 1201342423357.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7533242431021 - 2²³ = 7533234042413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7533242431061) 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, 65381751 + ... + 65496868.

It is an arithmetic number, because the mean of its divisors is an integer number (1883343341800).

Almost surely, 2^{7533242431021} is an apocalyptic number.

It is an amenable number.

7533242431021 is a deficient number, since it is larger than the sum of its proper divisors (130936179).

7533242431021 is a wasteful number, since it uses less digits than its factorization.

7533242431021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130936178.

The product of its (nonzero) digits is 120960, while the sum is 37.

Adding to 7533242431021 its reverse (1201342423357), we get a palindrome (8734584854378).

The spelling of 7533242431021 in words is "seven trillion, five hundred thirty-three billion, two hundred forty-two million, four hundred thirty-one thousand, twenty-one".