21141323340422 has 4 divisors (see below), whose sum is σ = 31711985010636. Its totient is φ = 10570661670210.

The previous prime is 21141323340407. The next prime is 21141323340437. The reversal of 21141323340422 is 22404332314112.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (21141323340407) and next prime (21141323340437).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5285330835104 + ... + 5285330835107.

It is an arithmetic number, because the mean of its divisors is an integer number (7927996252659).

Almost surely, 2^{21141323340422} is an apocalyptic number.

21141323340422 is a deficient number, since it is larger than the sum of its proper divisors (10570661670214).

21141323340422 is a wasteful number, since it uses less digits than its factorization.

21141323340422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10570661670213.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 21141323340422 its reverse (22404332314112), we get a palindrome (43545655654534).

The spelling of 21141323340422 in words is "twenty-one trillion, one hundred forty-one billion, three hundred twenty-three million, three hundred forty thousand, four hundred twenty-two".