123122101 has 4 divisors (see below), whose sum is σ = 123518304. Its totient is φ = 122725900.

The previous prime is 123122099. The next prime is 123122119. The reversal of 123122101 is 101221321.

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: 101221321 = 23 ⋅4400927.

It is a cyclic number.

It is not a de Polignac number, because 123122101 - 2¹ = 123122099 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 (123122141) 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, 197635 + ... + 198256.

It is an arithmetic number, because the mean of its divisors is an integer number (30879576).

Almost surely, 2^123122101 is an apocalyptic number.

It is an amenable number.

123122101 is a deficient number, since it is larger than the sum of its proper divisors (396203).

123122101 is an equidigital number, since it uses as much as digits as its factorization.

123122101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396202.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 123122101 is about 11096.0398791641. The cubic root of 123122101 is about 497.4834902731.

Adding to 123122101 its reverse (101221321), we get a palindrome (224343422).

It can be divided in two parts, 1231 and 22101, that added together give a palindrome (23332).

The spelling of 123122101 in words is "one hundred twenty-three million, one hundred twenty-two thousand, one hundred one".