2311203031055 has 4 divisors (see below), whose sum is σ = 2773443637272. Its totient is φ = 1848962424840.

The previous prime is 2311203030979. The next prime is 2311203031063. The reversal of 2311203031055 is 5501303021132.

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

It is not a de Polignac number, because 2311203031055 - 2¹⁸ = 2311202768911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231120303101 + ... + 231120303110.

It is an arithmetic number, because the mean of its divisors is an integer number (693360909318).

Almost surely, 2^{2311203031055} is an apocalyptic number.

2311203031055 is a deficient number, since it is larger than the sum of its proper divisors (462240606217).

2311203031055 is an equidigital number, since it uses as much as digits as its factorization.

2311203031055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462240606216.

The product of its (nonzero) digits is 2700, while the sum is 26.

Adding to 2311203031055 its reverse (5501303021132), we get a palindrome (7812506052187).

The spelling of 2311203031055 in words is "two trillion, three hundred eleven billion, two hundred three million, thirty-one thousand, fifty-five".