123100032122 has 4 divisors (see below), whose sum is σ = 184650048186. Its totient is φ = 61550016060.

The previous prime is 123100032119. The next prime is 123100032127. The reversal of 123100032122 is 221230001321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221230001321 = 7 ⋅31604285903.

It can be written as a sum of positive squares in only one way, i.e., 117375445201 + 5724586921 = 342601^2 + 75661^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 123100032122.

It is not an unprimeable number, because it can be changed into a prime (123100032127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30775008029 + ... + 30775008032.

Almost surely, 2^123100032122 is an apocalyptic number.

123100032122 is a deficient number, since it is larger than the sum of its proper divisors (61550016064).

123100032122 is an equidigital number, since it uses as much as digits as its factorization.

123100032122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61550016063.

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

Adding to 123100032122 its reverse (221230001321), we get a palindrome (344330033443).

The spelling of 123100032122 in words is "one hundred twenty-three billion, one hundred million, thirty-two thousand, one hundred twenty-two".