21432023302 has 16 divisors (see below), whose sum is σ = 32421528720. Its totient is φ = 10625048352.

The previous prime is 21432023287. The next prime is 21432023309. The reversal of 21432023302 is 20332023412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21432023309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165028 + ... + 264760.

It is an arithmetic number, because the mean of its divisors is an integer number (2026345545).

Almost surely, 2^21432023302 is an apocalyptic number.

21432023302 is a deficient number, since it is larger than the sum of its proper divisors (10989505418).

21432023302 is a wasteful number, since it uses less digits than its factorization.

21432023302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100647.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 21432023302 its reverse (20332023412), we get a palindrome (41764046714).

The spelling of 21432023302 in words is "twenty-one billion, four hundred thirty-two million, twenty-three thousand, three hundred two".