21302303001 has 16 divisors (see below), whose sum is σ = 33871985664. Its totient is φ = 11643494544.

The previous prime is 21302302949. The next prime is 21302303023. The reversal of 21302303001 is 10030320312.

It is not a de Polignac number, because 21302303001 - 2¹¹ = 21302300953 is a prime.

It is a super-2 number, since 2×21302303001² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21302703001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22051591 + ... + 22052556.

It is an arithmetic number, because the mean of its divisors is an integer number (2116999104).

Almost surely, 2^21302303001 is an apocalyptic number.

21302303001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

21302303001 is a deficient number, since it is larger than the sum of its proper divisors (12569682663).

21302303001 is a wasteful number, since it uses less digits than its factorization.

21302303001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44104180.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 21302303001 its reverse (10030320312), we get a palindrome (31332623313).

The spelling of 21302303001 in words is "twenty-one billion, three hundred two million, three hundred three thousand, one".