21112131301313 has 8 divisors (see below), whose sum is σ = 23724669288768. Its totient is φ = 18640811583504.

The previous prime is 21112131301279. The next prime is 21112131301343. The reversal of 21112131301313 is 31310313121112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21112131301313 - 2¹² = 21112131297217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21112131301343) 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, 35304567095 + ... + 35304567692.

It is an arithmetic number, because the mean of its divisors is an integer number (2965583661096).

Almost surely, 2^{21112131301313} is an apocalyptic number.

21112131301313 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

21112131301313 is a deficient number, since it is larger than the sum of its proper divisors (2612537987455).

21112131301313 is a wasteful number, since it uses less digits than its factorization.

21112131301313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70609134823.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 21112131301313 its reverse (31310313121112), we get a palindrome (52422444422425).

The spelling of 21112131301313 in words is "twenty-one trillion, one hundred twelve billion, one hundred thirty-one million, three hundred one thousand, three hundred thirteen".