121201011023 has 8 divisors (see below), whose sum is σ = 126400525440. Its totient is φ = 116082109440.

The previous prime is 121201011017. The next prime is 121201011031. The reversal of 121201011023 is 320110102121.

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 121201011023 - 2⁸ = 121201010767 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121201010989 and 121201011007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121201011083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20150138 + ... + 20156151.

It is an arithmetic number, because the mean of its divisors is an integer number (15800065680).

Almost surely, 2^121201011023 is an apocalyptic number.

121201011023 is a deficient number, since it is larger than the sum of its proper divisors (5199514417).

121201011023 is an equidigital number, since it uses as much as digits as its factorization.

121201011023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40306417.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 121201011023 its reverse (320110102121), we get a palindrome (441311113144).

The spelling of 121201011023 in words is "one hundred twenty-one billion, two hundred one million, eleven thousand, twenty-three".