21403463233 has 8 divisors (see below), whose sum is σ = 22935534048. Its totient is φ = 19901730624.

The previous prime is 21403463219. The next prime is 21403463281. The reversal of 21403463233 is 33236430412.

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

It is a cyclic number.

It is not a de Polignac number, because 21403463233 - 2¹⁷ = 21403332161 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21403463195 and 21403463204.

It is not an unprimeable number, because it can be changed into a prime (21403463203) 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, 7583091 + ... + 7585912.

It is an arithmetic number, because the mean of its divisors is an integer number (2866941756).

Almost surely, 2^21403463233 is an apocalyptic number.

It is an amenable number.

21403463233 is a deficient number, since it is larger than the sum of its proper divisors (1532070815).

21403463233 is a wasteful number, since it uses less digits than its factorization.

21403463233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15169103.

The product of its (nonzero) digits is 31104, while the sum is 31.

Adding to 21403463233 its reverse (33236430412), we get a palindrome (54639893645).

The spelling of 21403463233 in words is "twenty-one billion, four hundred three million, four hundred sixty-three thousand, two hundred thirty-three".