2011320703245 has 32 divisors (see below), whose sum is σ = 3738136101120. Its totient is φ = 904387760640.

The previous prime is 2011320703241. The next prime is 2011320703261. The reversal of 2011320703245 is 5423070231102.

It is not a de Polignac number, because 2011320703245 - 2² = 2011320703241 is a prime.

It is a super-2 number, since 2×2011320703245² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011320703241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 157005360 + ... + 157018169.

It is an arithmetic number, because the mean of its divisors is an integer number (116816753160).

Almost surely, 2^{2011320703245} is an apocalyptic number.

It is an amenable number.

2011320703245 is a deficient number, since it is larger than the sum of its proper divisors (1726815397875).

2011320703245 is a wasteful number, since it uses less digits than its factorization.

2011320703245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314023605.

The product of its (nonzero) digits is 10080, while the sum is 30.

Adding to 2011320703245 its reverse (5423070231102), we get a palindrome (7434390934347).

The spelling of 2011320703245 in words is "two trillion, eleven billion, three hundred twenty million, seven hundred three thousand, two hundred forty-five".