20113230232011 has 32 divisors (see below), whose sum is σ = 31981738613760. Its totient is φ = 10993411021824.

The previous prime is 20113230231977. The next prime is 20113230232063. The reversal of 20113230232011 is 11023203231102.

It is not a de Polignac number, because 20113230232011 - 2¹³ = 20113230223819 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (20113230232111) 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, 39317571 + ... + 39825843.

It is an arithmetic number, because the mean of its divisors is an integer number (999429331680).

Almost surely, 2^{20113230232011} is an apocalyptic number.

20113230232011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20113230232011 is a deficient number, since it is larger than the sum of its proper divisors (11868508381749).

20113230232011 is a wasteful number, since it uses less digits than its factorization.

20113230232011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590235.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 20113230232011 its reverse (11023203231102), we get a palindrome (31136433463113).

The spelling of 20113230232011 in words is "twenty trillion, one hundred thirteen billion, two hundred thirty million, two hundred thirty-two thousand, eleven".