21303211230312 has 128 divisors (see below), whose sum is σ = 60572537372160. Its totient is φ = 6186420414720.

The previous prime is 21303211230299. The next prime is 21303211230331.

21303211230312 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17102158 + ... + 18305469.

It is an arithmetic number, because the mean of its divisors is an integer number (473222948220).

Almost surely, 2^{21303211230312} is an apocalyptic number.

21303211230312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21303211230312 is an abundant number, since it is smaller than the sum of its proper divisors (39269326141848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21303211230312 is a wasteful number, since it uses less digits than its factorization.

21303211230312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35407743 (or 35407739 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

It can be divided in two parts, 2130321 and 1230312, that added together give a palindrome (3360633).

The spelling of 21303211230312 in words is "twenty-one trillion, three hundred three billion, two hundred eleven million, two hundred thirty thousand, three hundred twelve".