2311520054401 has 4 divisors (see below), whose sum is σ = 2311925518804. Its totient is φ = 2311114590000.

The previous prime is 2311520054383. The next prime is 2311520054411. The reversal of 2311520054401 is 1044500251132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 867254500225 + 1444265554176 = 931265^2 + 1201776^2 .

It is a cyclic number.

It is not a de Polignac number, because 2311520054401 - 2⁵ = 2311520054369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2311520054401.

It is not an unprimeable number, because it can be changed into a prime (2311520054411) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 202723650 + ... + 202735051.

It is an arithmetic number, because the mean of its divisors is an integer number (577981379701).

Almost surely, 2^{2311520054401} is an apocalyptic number.

It is an amenable number.

2311520054401 is a deficient number, since it is larger than the sum of its proper divisors (405464403).

2311520054401 is an equidigital number, since it uses as much as digits as its factorization.

2311520054401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405464402.

The product of its (nonzero) digits is 4800, while the sum is 28.

The spelling of 2311520054401 in words is "two trillion, three hundred eleven billion, five hundred twenty million, fifty-four thousand, four hundred one".