20253144233 has 16 divisors (see below), whose sum is σ = 23310471936. Its totient is φ = 17236929600.

The previous prime is 20253144209. The next prime is 20253144277. The reversal of 20253144233 is 33244135202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20253144233 - 2¹⁴ = 20253127849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20253144196 and 20253144205.

It is not an unprimeable number, because it can be changed into a prime (20253144133) 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 15 ways as a sum of consecutive naturals, for example, 4070135 + ... + 4075107.

It is an arithmetic number, because the mean of its divisors is an integer number (1456904496).

Almost surely, 2^20253144233 is an apocalyptic number.

It is an amenable number.

20253144233 is a deficient number, since it is larger than the sum of its proper divisors (3057327703).

20253144233 is a wasteful number, since it uses less digits than its factorization.

20253144233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8984.

The product of its (nonzero) digits is 17280, while the sum is 29.

Adding to 20253144233 its reverse (33244135202), we get a palindrome (53497279435).

The spelling of 20253144233 in words is "twenty billion, two hundred fifty-three million, one hundred forty-four thousand, two hundred thirty-three".