21313313311332 has 48 divisors (see below), whose sum is σ = 56836709016192. Its totient is φ = 6089388783360.

The previous prime is 21313313311321. The next prime is 21313313311349. The reversal of 21313313311332 is 23311331331312.

It is a super-2 number, since 2×21313313311332² (a number of 27 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 21313313311332.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1320982 + ... + 6661202.

It is an arithmetic number, because the mean of its divisors is an integer number (1184098104504).

Almost surely, 2^{21313313311332} is an apocalyptic number.

It is an amenable number.

21313313311332 is an abundant number, since it is smaller than the sum of its proper divisors (35523395704860).

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

21313313311332 is a wasteful number, since it uses less digits than its factorization.

21313313311332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5387748 (or 5387746 counting only the distinct ones).

The product of its digits is 8748, while the sum is 30.

Adding to 21313313311332 its reverse (23311331331312), we get a palindrome (44624644642644).

The spelling of 21313313311332 in words is "twenty-one trillion, three hundred thirteen billion, three hundred thirteen million, three hundred eleven thousand, three hundred thirty-two".