121123112101 has 8 divisors (see below), whose sum is σ = 121543498944. Its totient is φ = 120703446240.

The previous prime is 121123112093. The next prime is 121123112137. The reversal of 121123112101 is 101211321121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121123112101 - 2³ = 121123112093 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 (121123112161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157426 + ... + 516748.

It is an arithmetic number, because the mean of its divisors is an integer number (15192937368).

Almost surely, 2^121123112101 is an apocalyptic number.

It is an amenable number.

121123112101 is a deficient number, since it is larger than the sum of its proper divisors (420386843).

121123112101 is an equidigital number, since it uses as much as digits as its factorization.

121123112101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360491.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 121123112101 its reverse (101211321121), we get a palindrome (222334433222).

It can be divided in two parts, 12112 and 3112101, that added together give a palindrome (3124213).

The spelling of 121123112101 in words is "one hundred twenty-one billion, one hundred twenty-three million, one hundred twelve thousand, one hundred one".