121002002023 has 16 divisors (see below), whose sum is σ = 142236754240. Its totient is φ = 100762776576.

The previous prime is 121002001937. The next prime is 121002002027. The reversal of 121002002023 is 320200200121.

It is a de Polignac number, because none of the positive numbers 2^k-121002002023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121002001994 and 121002002012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121002002027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172788 + ... + 521401.

It is an arithmetic number, because the mean of its divisors is an integer number (8889797140).

Almost surely, 2^121002002023 is an apocalyptic number.

121002002023 is a deficient number, since it is larger than the sum of its proper divisors (21234752217).

121002002023 is an equidigital number, since it uses as much as digits as its factorization.

121002002023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694906.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 121002002023 its reverse (320200200121), we get a palindrome (441202202144).

The spelling of 121002002023 in words is "one hundred twenty-one billion, two million, two thousand, twenty-three".