23211310420031 has 2 divisors, whose sum is σ = 23211310420032. Its totient is φ = 23211310420030.

The previous prime is 23211310420013. The next prime is 23211310420049. The reversal of 23211310420031 is 13002401311232.

Together with previous prime (23211310420013) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (23211310420013) and next prime (23211310420049).

It is a cyclic number.

It is not a de Polignac number, because 23211310420031 - 2²² = 23211306225727 is a prime.

It is a super-2 number, since 2×23211310420031² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23211310419979 and 23211310420006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23211310420061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11605655210015 + 11605655210016.

It is an arithmetic number, because the mean of its divisors is an integer number (11605655210016).

Almost surely, 2^{23211310420031} is an apocalyptic number.

23211310420031 is a deficient number, since it is larger than the sum of its proper divisors (1).

23211310420031 is an equidigital number, since it uses as much as digits as its factorization.

23211310420031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 23211310420031 its reverse (13002401311232), we get a palindrome (36213711731263).

The spelling of 23211310420031 in words is "twenty-three trillion, two hundred eleven billion, three hundred ten million, four hundred twenty thousand, thirty-one".