2311211045 has 64 divisors (see below), whose sum is σ = 3388815360. Its totient is φ = 1499097600.

The previous prime is 2311211017. The next prime is 2311211101. The reversal of 2311211045 is 5401121132.

It is not a de Polignac number, because 2311211045 - 2¹⁰ = 2311210021 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 (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3745577 + ... + 3746193.

It is an arithmetic number, because the mean of its divisors is an integer number (52950240).

Almost surely, 2^2311211045 is an apocalyptic number.

It is an amenable number.

2311211045 is a deficient number, since it is larger than the sum of its proper divisors (1077604315).

2311211045 is a wasteful number, since it uses less digits than its factorization.

2311211045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703 (or 677 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 2311211045 is about 48075.0563702218. The cubic root of 2311211045 is about 1322.1473780642.

Adding to 2311211045 its reverse (5401121132), we get a palindrome (7712332177).

The spelling of 2311211045 in words is "two billion, three hundred eleven million, two hundred eleven thousand, forty-five".