2011321245 has 32 divisors (see below), whose sum is σ = 3340149120. Its totient is φ = 1032272640.

The previous prime is 2011321237. The next prime is 2011321267. The reversal of 2011321245 is 5421231102.

It is not a de Polignac number, because 2011321245 - 2³ = 2011321237 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 126015 + ... + 141075.

It is an arithmetic number, because the mean of its divisors is an integer number (104379660).

Almost surely, 2^2011321245 is an apocalyptic number.

It is an amenable number.

2011321245 is a deficient number, since it is larger than the sum of its proper divisors (1328827875).

2011321245 is a wasteful number, since it uses less digits than its factorization.

2011321245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15405.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 2011321245 is about 44847.7562983925. The cubic root of 2011321245 is about 1262.2938907400.

Adding to 2011321245 its reverse (5421231102), we get a palindrome (7432552347).

The spelling of 2011321245 in words is "two billion, eleven million, three hundred twenty-one thousand, two hundred forty-five".