2011313988 has 72 divisors (see below), whose sum is σ = 5150236728. Its totient is φ = 661782528.

The previous prime is 2011313987. The next prime is 2011314001. The reversal of 2011313988 is 8893131102.

It can be written as a sum of positive squares in 4 ways, for example, as 11614464 + 1999699524 = 3408^2 + 44718^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (2011313987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 950820 + ... + 952932.

Almost surely, 2^2011313988 is an apocalyptic number.

It is an amenable number.

2011313988 is an abundant number, since it is smaller than the sum of its proper divisors (3138922740).

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

2011313988 is a wasteful number, since it uses less digits than its factorization.

2011313988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2453 (or 2448 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 2011313988 is about 44847.6753912619. The cubic root of 2011313988 is about 1262.2923725874.

The spelling of 2011313988 in words is "two billion, eleven million, three hundred thirteen thousand, nine hundred eighty-eight".