21230034330 has 32 divisors (see below), whose sum is σ = 51402993984. Its totient is φ = 5611241216.

The previous prime is 21230034323. The next prime is 21230034337. The reversal of 21230034330 is 3343003212.

It is an interprime number because it is at equal distance from previous prime (21230034323) and next prime (21230034337).

It is a junction number, because it is equal to n+sod(n) for n = 21230034297 and 21230034306.

It is not an unprimeable number, because it can be changed into a prime (21230034337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3127884 + ... + 3134663.

It is an arithmetic number, because the mean of its divisors is an integer number (1606343562).

Almost surely, 2^21230034330 is an apocalyptic number.

21230034330 is an abundant number, since it is smaller than the sum of its proper divisors (30172959654).

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

21230034330 is a wasteful number, since it uses less digits than its factorization.

21230034330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6262670.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 21230034330 its reverse (3343003212), we get a palindrome (24573037542).

The spelling of 21230034330 in words is "twenty-one billion, two hundred thirty million, thirty-four thousand, three hundred thirty".