20113311133 has 8 divisors (see below), whose sum is σ = 21312519552. Its totient is φ = 18915888576.

The previous prime is 20113311121. The next prime is 20113311181. The reversal of 20113311133 is 33111331102.

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

It is not a de Polignac number, because 20113311133 - 2⁹ = 20113310621 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20113311133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20113321133) 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 7 ways as a sum of consecutive naturals, for example, 423235 + ... + 468352.

It is an arithmetic number, because the mean of its divisors is an integer number (2664064944).

Almost surely, 2^20113311133 is an apocalyptic number.

It is an amenable number.

20113311133 is a deficient number, since it is larger than the sum of its proper divisors (1199208419).

20113311133 is a wasteful number, since it uses less digits than its factorization.

20113311133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892931.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 20113311133 its reverse (33111331102), we get a palindrome (53224642235).

The spelling of 20113311133 in words is "twenty billion, one hundred thirteen million, three hundred eleven thousand, one hundred thirty-three".