21403300010 has 16 divisors (see below), whose sum is σ = 38530504872. Its totient is φ = 8560305600.

The previous prime is 21403300001. The next prime is 21403300019. The reversal of 21403300010 is 1000330412.

It is an interprime number because it is at equal distance from previous prime (21403300001) and next prime (21403300019).

It can be written as a sum of positive squares in 4 ways, for example, as 18422904361 + 2980395649 = 135731^2 + 54593^2 .

It is not an unprimeable number, because it can be changed into a prime (21403300019) 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, 35021 + ... + 209840.

Almost surely, 2^21403300010 is an apocalyptic number.

21403300010 is a deficient number, since it is larger than the sum of its proper divisors (17127204862).

21403300010 is a wasteful number, since it uses less digits than its factorization.

21403300010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253609.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 21403300010 its reverse (1000330412), we get a palindrome (22403630422).

The spelling of 21403300010 in words is "twenty-one billion, four hundred three million, three hundred thousand, ten".