20101223234331 has 6 divisors (see below), whose sum is σ = 29035100227380. Its totient is φ = 13400815489548.

The previous prime is 20101223234293. The next prime is 20101223234353. The reversal of 20101223234331 is 13343232210102.

20101223234331 is a `hidden beast` number, since 2 + 0 + 1 + 0 + 1 + 2 + 2 + 323 + 4 + 331 = 666.

It is not a de Polignac number, because 20101223234331 - 2¹⁹ = 20101222710043 is a prime.

It is a super-2 number, since 2×20101223234331² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20101223234295 and 20101223234304.

It is not an unprimeable number, because it can be changed into a prime (20101223234831) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1116734624121 + ... + 1116734624138.

It is an arithmetic number, because the mean of its divisors is an integer number (4839183371230).

Almost surely, 2^{20101223234331} is an apocalyptic number.

20101223234331 is a deficient number, since it is larger than the sum of its proper divisors (8933876993049).

20101223234331 is a wasteful number, since it uses less digits than its factorization.

20101223234331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2233469248265 (or 2233469248262 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 20101223234331 its reverse (13343232210102), we get a palindrome (33444455444433).

The spelling of 20101223234331 in words is "twenty trillion, one hundred one billion, two hundred twenty-three million, two hundred thirty-four thousand, three hundred thirty-one".