2311261555423 has 4 divisors (see below), whose sum is σ = 2311864549488. Its totient is φ = 2310658561360.

The previous prime is 2311261555397. The next prime is 2311261555453. The reversal of 2311261555423 is 3245551621132.

2311261555423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2311261555423 - 2²¹ = 2311259458271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311261555453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 301491283 + ... + 301498948.

It is an arithmetic number, because the mean of its divisors is an integer number (577966137372).

Almost surely, 2^{2311261555423} is an apocalyptic number.

2311261555423 is a deficient number, since it is larger than the sum of its proper divisors (602994065).

2311261555423 is an equidigital number, since it uses as much as digits as its factorization.

2311261555423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602994064.

The product of its digits is 216000, while the sum is 40.

The spelling of 2311261555423 in words is "two trillion, three hundred eleven billion, two hundred sixty-one million, five hundred fifty-five thousand, four hundred twenty-three".