12231100031 has 2 divisors, whose sum is σ = 12231100032. Its totient is φ = 12231100030.

The previous prime is 12231099917. The next prime is 12231100067. The reversal of 12231100031 is 13000113221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12231100031 - 2²⁶ = 12163991167 is a prime.

It is a super-2 number, since 2×12231100031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12231099979 and 12231100015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12231100631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6115550015 + 6115550016.

It is an arithmetic number, because the mean of its divisors is an integer number (6115550016).

Almost surely, 2^12231100031 is an apocalyptic number.

12231100031 is a deficient number, since it is larger than the sum of its proper divisors (1).

12231100031 is an equidigital number, since it uses as much as digits as its factorization.

12231100031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 12231100031 its reverse (13000113221), we get a palindrome (25231213252).

The spelling of 12231100031 in words is "twelve billion, two hundred thirty-one million, one hundred thousand, thirty-one".