2031100331123 has 4 divisors (see below), whose sum is σ = 2031106054440. Its totient is φ = 2031094607808.

The previous prime is 2031100331063. The next prime is 2031100331129. The reversal of 2031100331123 is 3211330011302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2031100331123 - 2¹² = 2031100327027 is a prime.

It is a super-2 number, since 2×2031100331123² (a number of 25 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 = 2031100331095 and 2031100331104.

It is not an unprimeable number, because it can be changed into a prime (2031100331129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2291465 + ... + 3051722.

It is an arithmetic number, because the mean of its divisors is an integer number (507776513610).

Almost surely, 2^{2031100331123} is an apocalyptic number.

2031100331123 is a deficient number, since it is larger than the sum of its proper divisors (5723317).

2031100331123 is an equidigital number, since it uses as much as digits as its factorization.

2031100331123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5723316.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 2031100331123 its reverse (3211330011302), we get a palindrome (5242430342425).

The spelling of 2031100331123 in words is "two trillion, thirty-one billion, one hundred million, three hundred thirty-one thousand, one hundred twenty-three".