21430433302 has 16 divisors (see below), whose sum is σ = 32834511360. Its totient is φ = 10485664488.

The previous prime is 21430433243. The next prime is 21430433303. The reversal of 21430433302 is 20333403412.

It is a super-2 number, since 2×21430433302² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21430433303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 845449 + ... + 870427.

It is an arithmetic number, because the mean of its divisors is an integer number (2052156960).

Almost surely, 2^21430433302 is an apocalyptic number.

21430433302 is a deficient number, since it is larger than the sum of its proper divisors (11404078058).

21430433302 is a wasteful number, since it uses less digits than its factorization.

21430433302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34155.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 21430433302 its reverse (20333403412), we get a palindrome (41763836714).

The spelling of 21430433302 in words is "twenty-one billion, four hundred thirty million, four hundred thirty-three thousand, three hundred two".