2045111320 has 64 divisors (see below), whose sum is σ = 5440219200. Its totient is φ = 676999680.

The previous prime is 2045111311. The next prime is 2045111389. The reversal of 2045111320 is 231115402.

It is a super-2 number, since 2×2045111320² = 8364960622384284800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 117811 + ... + 134050.

It is an arithmetic number, because the mean of its divisors is an integer number (85003425).

Almost surely, 2^2045111320 is an apocalyptic number.

2045111320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2045111320 is an abundant number, since it is smaller than the sum of its proper divisors (3395107880).

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

2045111320 is a wasteful number, since it uses less digits than its factorization.

2045111320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251908 (or 251904 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 2045111320 is about 45222.9070273020. The cubic root of 2045111320 is about 1269.3234911462.

Adding to 2045111320 its reverse (231115402), we get a palindrome (2276226722).

The spelling of 2045111320 in words is "two billion, forty-five million, one hundred eleven thousand, three hundred twenty".