121002122023 has 4 divisors (see below), whose sum is σ = 121002920008. Its totient is φ = 121001324040.

The previous prime is 121002122009. The next prime is 121002122053. The reversal of 121002122023 is 320221200121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121002122023 is a prime.

It is a super-2 number, since 2×121002122023² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121002121988 and 121002122006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121002122053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93648 + ... + 500773.

It is an arithmetic number, because the mean of its divisors is an integer number (30250730002).

Almost surely, 2^121002122023 is an apocalyptic number.

121002122023 is a deficient number, since it is larger than the sum of its proper divisors (797985).

121002122023 is an equidigital number, since it uses as much as digits as its factorization.

121002122023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797984.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 121002122023 its reverse (320221200121), we get a palindrome (441223322144).

The spelling of 121002122023 in words is "one hundred twenty-one billion, two million, one hundred twenty-two thousand, twenty-three".