121023110021101 has 4 divisors (see below), whose sum is σ = 123598069808832. Its totient is φ = 118448150233372.

The previous prime is 121023110021087. The next prime is 121023110021123. The reversal of 121023110021101 is 101120011320121.

It is a happy number.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121023110021101 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 (121023110021201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1287479893795 + ... + 1287479893888.

It is an arithmetic number, because the mean of its divisors is an integer number (30899517452208).

Almost surely, 2^{121023110021101} is an apocalyptic number.

It is an amenable number.

121023110021101 is a deficient number, since it is larger than the sum of its proper divisors (2574959787731).

121023110021101 is an equidigital number, since it uses as much as digits as its factorization.

121023110021101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2574959787730.

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

Adding to 121023110021101 its reverse (101120011320121), we get a palindrome (222143121341222).

The spelling of 121023110021101 in words is "one hundred twenty-one trillion, twenty-three billion, one hundred ten million, twenty-one thousand, one hundred one".