20331303331123 has 2 divisors, whose sum is σ = 20331303331124. Its totient is φ = 20331303331122.

The previous prime is 20331303331111. The next prime is 20331303331147. The reversal of 20331303331123 is 32113330313302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20331303331123 - 2²⁵ = 20331269776691 is a prime.

It is a super-2 number, since 2×20331303331123² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20331303331091 and 20331303331100.

It is not a weakly prime, because it can be changed into another prime (20331303331523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10165651665561 + 10165651665562.

It is an arithmetic number, because the mean of its divisors is an integer number (10165651665562).

Almost surely, 2^{20331303331123} is an apocalyptic number.

20331303331123 is a deficient number, since it is larger than the sum of its proper divisors (1).

20331303331123 is an equidigital number, since it uses as much as digits as its factorization.

20331303331123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 28.

Adding to 20331303331123 its reverse (32113330313302), we get a palindrome (52444633644425).

The spelling of 20331303331123 in words is "twenty trillion, three hundred thirty-one billion, three hundred three million, three hundred thirty-one thousand, one hundred twenty-three".