2311911127493 has 6 divisors (see below), whose sum is σ = 2541191570022. Its totient is φ = 2101737388520.

The previous prime is 2311911127433. The next prime is 2311911127511. The reversal of 2311911127493 is 3947211191132.

It can be written as a sum of positive squares in only one way, i.e., 2311911127009 + 484 = 1520497^2 + 22^2 .

It is not a de Polignac number, because 2311911127493 - 2⁶ = 2311911127429 is a prime.

It is a super-2 number, since 2×2311911127493² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311911127423) 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 5 ways as a sum of consecutive naturals, for example, 9553351646 + ... + 9553351887.

It is an arithmetic number, because the mean of its divisors is an integer number (423531928337).

Almost surely, 2^{2311911127493} is an apocalyptic number.

It is an amenable number.

2311911127493 is a deficient number, since it is larger than the sum of its proper divisors (229280442529).

2311911127493 is a wasteful number, since it uses less digits than its factorization.

2311911127493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19106703555 (or 19106703544 counting only the distinct ones).

The product of its digits is 81648, while the sum is 44.

The spelling of 2311911127493 in words is "two trillion, three hundred eleven billion, nine hundred eleven million, one hundred twenty-seven thousand, four hundred ninety-three".