20113233501 has 8 divisors (see below), whose sum is σ = 26818382304. Its totient is φ = 13408453520.

The previous prime is 20113233493. The next prime is 20113233527. The reversal of 20113233501 is 10533231102.

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

It is a cyclic number.

It is not a de Polignac number, because 20113233501 - 2³ = 20113233493 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20113233551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82135 + ... + 216731.

It is an arithmetic number, because the mean of its divisors is an integer number (3352297788).

Almost surely, 2^20113233501 is an apocalyptic number.

It is an amenable number.

20113233501 is a deficient number, since it is larger than the sum of its proper divisors (6705148803).

20113233501 is a wasteful number, since it uses less digits than its factorization.

20113233501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184411.

The product of its (nonzero) digits is 540, while the sum is 21.

Adding to 20113233501 its reverse (10533231102), we get a palindrome (30646464603).

The spelling of 20113233501 in words is "twenty billion, one hundred thirteen million, two hundred thirty-three thousand, five hundred one".