20233254345 has 32 divisors (see below), whose sum is σ = 32702745600. Its totient is φ = 10681391040.

The previous prime is 20233254343. The next prime is 20233254397. The reversal of 20233254345 is 54345233202.

It is not a de Polignac number, because 20233254345 - 2¹ = 20233254343 is a prime.

It is a super-2 number, since 2×20233254345² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20233254343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2240890 + ... + 2249900.

It is an arithmetic number, because the mean of its divisors is an integer number (1021960800).

Almost surely, 2^20233254345 is an apocalyptic number.

It is an amenable number.

20233254345 is a deficient number, since it is larger than the sum of its proper divisors (12469491255).

20233254345 is a wasteful number, since it uses less digits than its factorization.

20233254345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10525.

The product of its (nonzero) digits is 86400, while the sum is 33.

Adding to 20233254345 its reverse (54345233202), we get a palindrome (74578487547).

The spelling of 20233254345 in words is "twenty billion, two hundred thirty-three million, two hundred fifty-four thousand, three hundred forty-five".