21431477303 has 8 divisors (see below), whose sum is σ = 22678258176. Its totient is φ = 20210944600.

The previous prime is 21431477299. The next prime is 21431477323. The reversal of 21431477303 is 30377413412.

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 21431477303 - 2² = 21431477299 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21431477323) 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, 6560363 + ... + 6563628.

It is an arithmetic number, because the mean of its divisors is an integer number (2834782272).

Almost surely, 2^21431477303 is an apocalyptic number.

21431477303 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

21431477303 is a deficient number, since it is larger than the sum of its proper divisors (1246780873).

21431477303 is a wasteful number, since it uses less digits than its factorization.

21431477303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13124085.

The product of its (nonzero) digits is 42336, while the sum is 35.

The spelling of 21431477303 in words is "twenty-one billion, four hundred thirty-one million, four hundred seventy-seven thousand, three hundred three".