20311442011311 has 16 divisors (see below), whose sum is σ = 29547261554688. Its totient is φ = 12308570729600.

The previous prime is 20311442011297. The next prime is 20311442011339. The reversal of 20311442011311 is 11311024411302.

It is a cyclic number.

It is not a de Polignac number, because 20311442011311 - 2⁵ = 20311442011279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20311442012311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34557306 + ... + 35140151.

It is an arithmetic number, because the mean of its divisors is an integer number (1846703847168).

Almost surely, 2^{20311442011311} is an apocalyptic number.

20311442011311 is a deficient number, since it is larger than the sum of its proper divisors (9235819543377).

20311442011311 is a wasteful number, since it uses less digits than its factorization.

20311442011311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69706302.

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 20311442011311 its reverse (11311024411302), we get a palindrome (31622466422613).

The spelling of 20311442011311 in words is "twenty trillion, three hundred eleven billion, four hundred forty-two million, eleven thousand, three hundred eleven".