2111303240 has 32 divisors (see below), whose sum is σ = 4914243000. Its totient is φ = 815399424.

The previous prime is 2111303221. The next prime is 2111303273. The reversal of 2111303240 is 423031112.

It can be written as a sum of positive squares in 4 ways, for example, as 1083331396 + 1027971844 = 32914^2 + 32062^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 908885 + ... + 911204.

Almost surely, 2^2111303240 is an apocalyptic number.

2111303240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111303240 is an abundant number, since it is smaller than the sum of its proper divisors (2802939760).

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

2111303240 is a wasteful number, since it uses less digits than its factorization.

2111303240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820129 (or 1820125 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2111303240 is about 45948.9199002545. The cubic root of 2111303240 is about 1282.8726254686.

Adding to 2111303240 its reverse (423031112), we get a palindrome (2534334352).

The spelling of 2111303240 in words is "two billion, one hundred eleven million, three hundred three thousand, two hundred forty".