21234352030 has 8 divisors (see below), whose sum is σ = 38221833672. Its totient is φ = 8493740808.

The previous prime is 21234352019. The next prime is 21234352039. The reversal of 21234352030 is 3025343212.

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

It is a super-2 number, since 2×21234352030² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21234351986 and 21234352004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21234352039) 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, 1061717592 + ... + 1061717611.

It is an arithmetic number, because the mean of its divisors is an integer number (4777729209).

Almost surely, 2^21234352030 is an apocalyptic number.

21234352030 is a deficient number, since it is larger than the sum of its proper divisors (16987481642).

21234352030 is a wasteful number, since it uses less digits than its factorization.

21234352030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2123435210.

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 21234352030 its reverse (3025343212), we get a palindrome (24259695242).

The spelling of 21234352030 in words is "twenty-one billion, two hundred thirty-four million, three hundred fifty-two thousand, thirty".