2311520043453 has 8 divisors (see below), whose sum is σ = 3082415067648. Its totient is φ = 1540819190784.

The previous prime is 2311520043433. The next prime is 2311520043461. The reversal of 2311520043453 is 3543400251132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2311520043453 - 2³² = 2307225076157 is a prime.

It is a super-2 number, since 2×2311520043453² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311520043433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48515101 + ... + 48562722.

It is an arithmetic number, because the mean of its divisors is an integer number (385301883456).

Almost surely, 2^{2311520043453} is an apocalyptic number.

It is an amenable number.

2311520043453 is a deficient number, since it is larger than the sum of its proper divisors (770895024195).

2311520043453 is an equidigital number, since it uses as much as digits as its factorization.

2311520043453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97085763.

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 2311520043453 its reverse (3543400251132), we get a palindrome (5854920294585).

The spelling of 2311520043453 in words is "two trillion, three hundred eleven billion, five hundred twenty million, forty-three thousand, four hundred fifty-three".