21302420312 has 32 divisors (see below), whose sum is σ = 40028774400. Its totient is φ = 10628113824.

The previous prime is 21302420273. The next prime is 21302420329.

21302420312 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×21302420312² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13986383 + ... + 13987905.

It is an arithmetic number, because the mean of its divisors is an integer number (1250899200).

Almost surely, 2^21302420312 is an apocalyptic number.

It is an amenable number.

21302420312 is a deficient number, since it is larger than the sum of its proper divisors (18726354088).

21302420312 is a wasteful number, since it uses less digits than its factorization.

21302420312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4175 (or 4171 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The spelling of 21302420312 in words is "twenty-one billion, three hundred two million, four hundred twenty thousand, three hundred twelve".