23311103103031 has 2 divisors, whose sum is σ = 23311103103032. Its totient is φ = 23311103103030.

The previous prime is 23311103102993. The next prime is 23311103103103. The reversal of 23311103103031 is 13030130111332.

Together with next prime (23311103103103) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23311103103031 - 2²³ = 23311094714423 is a prime.

It is a super-2 number, since 2×23311103103031² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23311103102993 and 23311103103011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23311103103931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11655551551515 + 11655551551516.

It is an arithmetic number, because the mean of its divisors is an integer number (11655551551516).

Almost surely, 2^{23311103103031} is an apocalyptic number.

23311103103031 is a deficient number, since it is larger than the sum of its proper divisors (1).

23311103103031 is an equidigital number, since it uses as much as digits as its factorization.

23311103103031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 23311103103031 its reverse (13030130111332), we get a palindrome (36341233214363).

The spelling of 23311103103031 in words is "twenty-three trillion, three hundred eleven billion, one hundred three million, one hundred three thousand, thirty-one".