20113001355 has 8 divisors (see below), whose sum is σ = 32180802192. Its totient is φ = 10726934048.

The previous prime is 20113001351. The next prime is 20113001401. The reversal of 20113001355 is 55310031102.

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 20113001355 - 2² = 20113001351 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20113001351) 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 7 ways as a sum of consecutive naturals, for example, 670433364 + ... + 670433393.

It is an arithmetic number, because the mean of its divisors is an integer number (4022600274).

Almost surely, 2^20113001355 is an apocalyptic number.

20113001355 is a deficient number, since it is larger than the sum of its proper divisors (12067800837).

20113001355 is a wasteful number, since it uses less digits than its factorization.

20113001355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340866765.

The product of its (nonzero) digits is 450, while the sum is 21.

Adding to 20113001355 its reverse (55310031102), we get a palindrome (75423032457).

The spelling of 20113001355 in words is "twenty billion, one hundred thirteen million, one thousand, three hundred fifty-five".