2311253011533 has 16 divisors (see below), whose sum is σ = 3302565998976. Its totient is φ = 1434008917440.

The previous prime is 2311253011531. The next prime is 2311253011537. The reversal of 2311253011533 is 3351103521132.

It is not a de Polignac number, because 2311253011533 - 2¹ = 2311253011531 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2311253011533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311253011531) 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 15 ways as a sum of consecutive naturals, for example, 452651778 + ... + 452656883.

It is an arithmetic number, because the mean of its divisors is an integer number (206410374936).

Almost surely, 2^{2311253011533} is an apocalyptic number.

2311253011533 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2311253011533 is a deficient number, since it is larger than the sum of its proper divisors (991312987443).

2311253011533 is a wasteful number, since it uses less digits than its factorization.

2311253011533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905308724.

The product of its (nonzero) digits is 8100, while the sum is 30.

Adding to 2311253011533 its reverse (3351103521132), we get a palindrome (5662356532665).

The spelling of 2311253011533 in words is "two trillion, three hundred eleven billion, two hundred fifty-three million, eleven thousand, five hundred thirty-three".