2111240235440 has 80 divisors (see below), whose sum is σ = 5611295520768. Its totient is φ = 723669458688.

The previous prime is 2111240235409. The next prime is 2111240235457. The reversal of 2111240235440 is 445320421112.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

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, 1730009 + ... + 2686151.

Almost surely, 2^{2111240235440} is an apocalyptic number.

2111240235440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111240235440 is an abundant number, since it is smaller than the sum of its proper divisors (3500055285328).

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

2111240235440 is a wasteful number, since it uses less digits than its factorization.

2111240235440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960106 (or 960100 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 2111240235440 its reverse (445320421112), we get a palindrome (2556560656552).

The spelling of 2111240235440 in words is "two trillion, one hundred eleven billion, two hundred forty million, two hundred thirty-five thousand, four hundred forty".