21141431022 has 8 divisors (see below), whose sum is σ = 42282862056. Its totient is φ = 7047143672.

The previous prime is 21141431021. The next prime is 21141431023. The reversal of 21141431022 is 22013414112.

It is an interprime number because it is at equal distance from previous prime (21141431021) and next prime (21141431023).

It is a sphenic number, since it is the product of 3 distinct primes.

21141431022 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 21141431022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21141431021) 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, 1761785913 + ... + 1761785924.

It is an arithmetic number, because the mean of its divisors is an integer number (5285357757).

Almost surely, 2^21141431022 is an apocalyptic number.

21141431022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21141431022 is a wasteful number, since it uses less digits than its factorization.

21141431022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3523571842.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 21141431022 its reverse (22013414112), we get a palindrome (43154845134).

The spelling of 21141431022 in words is "twenty-one billion, one hundred forty-one million, four hundred thirty-one thousand, twenty-two".