21022433141 has 4 divisors (see below), whose sum is σ = 21275715552. Its totient is φ = 20769150732.

The previous prime is 21022433137. The next prime is 21022433147. The reversal of 21022433141 is 14133422012.

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 21022433141 - 2² = 21022433137 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 (21022433147) 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, 126641081 + ... + 126641246.

It is an arithmetic number, because the mean of its divisors is an integer number (5318928888).

Almost surely, 2^21022433141 is an apocalyptic number.

It is an amenable number.

21022433141 is a deficient number, since it is larger than the sum of its proper divisors (253282411).

21022433141 is an equidigital number, since it uses as much as digits as its factorization.

21022433141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253282410.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 21022433141 its reverse (14133422012), we get a palindrome (35155855153).

The spelling of 21022433141 in words is "twenty-one billion, twenty-two million, four hundred thirty-three thousand, one hundred forty-one".