21423322314140 has 48 divisors (see below), whose sum is σ = 45176810936544. Its totient is φ = 8533624108800.

The previous prime is 21423322314139. The next prime is 21423322314143. The reversal of 21423322314140 is 4141322332412.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21423322314097 and 21423322314106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21423322314143) 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 15 ways as a sum of consecutive naturals, for example, 2405975 + ... + 6973905.

It is an arithmetic number, because the mean of its divisors is an integer number (941183561178).

Almost surely, 2^{21423322314140} is an apocalyptic number.

21423322314140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21423322314140 is an abundant number, since it is smaller than the sum of its proper divisors (23753488622404).

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

21423322314140 is a wasteful number, since it uses less digits than its factorization.

21423322314140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4568918 (or 4568916 counting only the distinct ones).

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

Adding to 21423322314140 its reverse (4141322332412), we get a palindrome (25564644646552).

The spelling of 21423322314140 in words is "twenty-one trillion, four hundred twenty-three billion, three hundred twenty-two million, three hundred fourteen thousand, one hundred forty".