2111334345320 has 128 divisors (see below), whose sum is σ = 5322404505600. Its totient is φ = 749077401600.

The previous prime is 2111334345299. The next prime is 2111334345359. The reversal of 2111334345320 is 235434331112.

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, 2039930 + ... + 2895510.

It is an arithmetic number, because the mean of its divisors is an integer number (41581285200).

Almost surely, 2^{2111334345320} is an apocalyptic number.

2111334345320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2111334345320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2661202252800).

2111334345320 is an abundant number, since it is smaller than the sum of its proper divisors (3211070160280).

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

2111334345320 is a wasteful number, since it uses less digits than its factorization.

2111334345320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855819 (or 855815 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

Adding to 2111334345320 its reverse (235434331112), we get a palindrome (2346768676432).

The spelling of 2111334345320 in words is "two trillion, one hundred eleven billion, three hundred thirty-four million, three hundred forty-five thousand, three hundred twenty".