123223031101 has 2 divisors, whose sum is σ = 123223031102. Its totient is φ = 123223031100.

The previous prime is 123223031089. The next prime is 123223031117. The reversal of 123223031101 is 101130322321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90570902500 + 32652128601 = 300950^2 + 180699^2 .

It is a cyclic number.

It is not a de Polignac number, because 123223031101 - 2⁵ = 123223031069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123223035101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61611515550 + 61611515551.

It is an arithmetic number, because the mean of its divisors is an integer number (61611515551).

Almost surely, 2^123223031101 is an apocalyptic number.

It is an amenable number.

123223031101 is a deficient number, since it is larger than the sum of its proper divisors (1).

123223031101 is an equidigital number, since it uses as much as digits as its factorization.

123223031101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 123223031101 its reverse (101130322321), we get a palindrome (224353353422).

The spelling of 123223031101 in words is "one hundred twenty-three billion, two hundred twenty-three million, thirty-one thousand, one hundred one".