2111311233240 has 128 divisors (see below), whose sum is σ = 6911104446720. Its totient is φ = 511732390400.

The previous prime is 2111311233209. The next prime is 2111311233329. The reversal of 2111311233240 is 423321131112.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2111311233240.

It is a congruent number.

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, 6671062 + ... + 6980378.

It is an arithmetic number, because the mean of its divisors is an integer number (53993003490).

Almost surely, 2^{2111311233240} is an apocalyptic number.

2111311233240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111311233240 is an abundant number, since it is smaller than the sum of its proper divisors (4799793213480).

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

2111311233240 is a wasteful number, since it uses less digits than its factorization.

2111311233240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314513 (or 314509 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 2111311233240 its reverse (423321131112), we get a palindrome (2534632364352).

The spelling of 2111311233240 in words is "two trillion, one hundred eleven billion, three hundred eleven million, two hundred thirty-three thousand, two hundred forty".