20123243335 has 32 divisors (see below), whose sum is σ = 26542676160. Its totient is φ = 14555289600.

The previous prime is 20123243303. The next prime is 20123243351. The reversal of 20123243335 is 53334232102.

It is not a de Polignac number, because 20123243335 - 2⁵ = 20123243303 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 945036 + ... + 966094.

It is an arithmetic number, because the mean of its divisors is an integer number (829458630).

Almost surely, 2^20123243335 is an apocalyptic number.

20123243335 is a deficient number, since it is larger than the sum of its proper divisors (6419432825).

20123243335 is a wasteful number, since it uses less digits than its factorization.

20123243335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21379.

The product of its (nonzero) digits is 12960, while the sum is 28.

Adding to 20123243335 its reverse (53334232102), we get a palindrome (73457475437).

The spelling of 20123243335 in words is "twenty billion, one hundred twenty-three million, two hundred forty-three thousand, three hundred thirty-five".