21024440313234 has 32 divisors (see below), whose sum is σ = 42605383713984. Its totient is φ = 6915594233280.

The previous prime is 21024440313203. The next prime is 21024440313277. The reversal of 21024440313234 is 43231304442012.

It is a junction number, because it is equal to n+sod(n) for n = 21024440313195 and 21024440313204.

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, 24321837 + ... + 25171424.

It is an arithmetic number, because the mean of its divisors is an integer number (1331418241062).

Almost surely, 2^{21024440313234} is an apocalyptic number.

21024440313234 is an abundant number, since it is smaller than the sum of its proper divisors (21580943400750).

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

21024440313234 is a wasteful number, since it uses less digits than its factorization.

21024440313234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49494202.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 21024440313234 its reverse (43231304442012), we get a palindrome (64255744755246).

The spelling of 21024440313234 in words is "twenty-one trillion, twenty-four billion, four hundred forty million, three hundred thirteen thousand, two hundred thirty-four".