2311111401 has 16 divisors (see below), whose sum is σ = 3154636800. Its totient is φ = 1504321808.

The previous prime is 2311111381. The next prime is 2311111409. The reversal of 2311111401 is 1041111132.

It is a cyclic number.

It is not a de Polignac number, because 2311111401 - 2¹⁰ = 2311110377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2311111409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39520 + ... + 78638.

It is an arithmetic number, because the mean of its divisors is an integer number (197164800).

Almost surely, 2^2311111401 is an apocalyptic number.

It is an amenable number.

2311111401 is a deficient number, since it is larger than the sum of its proper divisors (843525399).

2311111401 is a wasteful number, since it uses less digits than its factorization.

2311111401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39588.

The product of its (nonzero) digits is 24, while the sum is 15.

The square root of 2311111401 is about 48074.0200212131. The cubic root of 2311111401 is about 1322.1283770666.

Adding to 2311111401 its reverse (1041111132), we get a palindrome (3352222533).

The spelling of 2311111401 in words is "two billion, three hundred eleven million, one hundred eleven thousand, four hundred one".