123120223001 has 4 divisors (see below), whose sum is σ = 123341265252. Its totient is φ = 122899180752.

The previous prime is 123120222991. The next prime is 123120223027. The reversal of 123120223001 is 100322021321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3085691401 + 120034531600 = 55549^2 + 346460^2 .

It is a cyclic number.

It is not a de Polignac number, because 123120223001 - 2²⁶ = 123053114137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123120225001) 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, 110520290 + ... + 110521403.

It is an arithmetic number, because the mean of its divisors is an integer number (30835316313).

Almost surely, 2^123120223001 is an apocalyptic number.

It is an amenable number.

123120223001 is a deficient number, since it is larger than the sum of its proper divisors (221042251).

123120223001 is an equidigital number, since it uses as much as digits as its factorization.

123120223001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221042250.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 123120223001 its reverse (100322021321), we get a palindrome (223442244322).

The spelling of 123120223001 in words is "one hundred twenty-three billion, one hundred twenty million, two hundred twenty-three thousand, one".