21343240240322 has 32 divisors (see below), whose sum is σ = 42984987341184. Its totient is φ = 7675890595200.

The previous prime is 21343240240307. The next prime is 21343240240369. The reversal of 21343240240322 is 22304204234312.

It is a super-2 number, since 2×21343240240322² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5330477579 + ... + 5330481582.

It is an arithmetic number, because the mean of its divisors is an integer number (1343280854412).

Almost surely, 2^{21343240240322} is an apocalyptic number.

21343240240322 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21343240240322 is an abundant number, since it is smaller than the sum of its proper divisors (21641747100862).

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

21343240240322 is a wasteful number, since it uses less digits than its factorization.

21343240240322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10660959194.

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 21343240240322 its reverse (22304204234312), we get a palindrome (43647444474634).

The spelling of 21343240240322 in words is "twenty-one trillion, three hundred forty-three billion, two hundred forty million, two hundred forty thousand, three hundred twenty-two".