123113222101 has 4 divisors (see below), whose sum is σ = 128465970912. Its totient is φ = 117760473292.

The previous prime is 123113222087. The next prime is 123113222117. The reversal of 123113222101 is 101222311321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 101222311321 = 19379 ⋅5223299.

It is a cyclic number.

It is not a de Polignac number, because 123113222101 - 2³³ = 114523287509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123113222161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2676374371 + ... + 2676374416.

It is an arithmetic number, because the mean of its divisors is an integer number (32116492728).

Almost surely, 2^123113222101 is an apocalyptic number.

It is an amenable number.

123113222101 is a deficient number, since it is larger than the sum of its proper divisors (5352748811).

123113222101 is an equidigital number, since it uses as much as digits as its factorization.

123113222101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5352748810.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 123113222101 its reverse (101222311321), we get a palindrome (224335533422).

The spelling of 123113222101 in words is "one hundred twenty-three billion, one hundred thirteen million, two hundred twenty-two thousand, one hundred one".