20111320002331 has 8 divisors (see below), whose sum is σ = 20123686748880. Its totient is φ = 20098955196672.

The previous prime is 20111320002329. The next prime is 20111320002343. The reversal of 20111320002331 is 13320002311102.

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 20111320002331 - 2¹ = 20111320002329 is a prime.

It is a super-2 number, since 2×20111320002331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20111320002299 and 20111320002308.

It is not an unprimeable number, because it can be changed into a prime (20111320072331) 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, 20524051 + ... + 21481603.

It is an arithmetic number, because the mean of its divisors is an integer number (2515460843610).

Almost surely, 2^{20111320002331} is an apocalyptic number.

20111320002331 is a deficient number, since it is larger than the sum of its proper divisors (12366746549).

20111320002331 is a wasteful number, since it uses less digits than its factorization.

20111320002331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970445.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 20111320002331 its reverse (13320002311102), we get a palindrome (33431322313433).

The spelling of 20111320002331 in words is "twenty trillion, one hundred eleven billion, three hundred twenty million, two thousand, three hundred thirty-one".