2111323340 has 48 divisors (see below), whose sum is σ = 5119447872. Its totient is φ = 716414976.

The previous prime is 2111323327. The next prime is 2111323369. The reversal of 2111323340 is 433231112.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 64157 + ... + 91316.

It is an arithmetic number, because the mean of its divisors is an integer number (106655164).

Almost surely, 2^2111323340 is an apocalyptic number.

2111323340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111323340 is an abundant number, since it is smaller than the sum of its proper divisors (3008124532).

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

2111323340 is a wasteful number, since it uses less digits than its factorization.

2111323340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155586 (or 155584 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2111323340 is about 45949.1386208708. The cubic root of 2111323340 is about 1282.8766965178.

Adding to 2111323340 its reverse (433231112), we get a palindrome (2544554452).

The spelling of 2111323340 in words is "two billion, one hundred eleven million, three hundred twenty-three thousand, three hundred forty".