20331023112131 has 8 divisors (see below), whose sum is σ = 20850541831728. Its totient is φ = 19812630112000.

The previous prime is 20331023112109. The next prime is 20331023112259. The reversal of 20331023112131 is 13121132013302.

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 20331023112131 - 2¹⁸ = 20331022849987 is a prime.

It is a super-2 number, since 2×20331023112131² (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 = 20331023112097 and 20331023112106.

It is not an unprimeable number, because it can be changed into a prime (20331023112431) 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, 281393285 + ... + 281465526.

It is an arithmetic number, because the mean of its divisors is an integer number (2606317728966).

Almost surely, 2^{20331023112131} is an apocalyptic number.

20331023112131 is a deficient number, since it is larger than the sum of its proper divisors (519518719597).

20331023112131 is an equidigital number, since it uses as much as digits as its factorization.

20331023112131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562859733.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 20331023112131 its reverse (13121132013302), we get a palindrome (33452155125433).

The spelling of 20331023112131 in words is "twenty trillion, three hundred thirty-one billion, twenty-three million, one hundred twelve thousand, one hundred thirty-one".