120203211023 has 16 divisors (see below), whose sum is σ = 147840519744. Its totient is φ = 95380968960.

The previous prime is 120203211001. The next prime is 120203211049. The reversal of 120203211023 is 320112302021.

It is a cyclic number.

It is not a de Polignac number, because 120203211023 - 2⁸ = 120203210767 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120203210992 and 120203211010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120203261023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8272340 + ... + 8286857.

It is an arithmetic number, because the mean of its divisors is an integer number (9240032484).

Almost surely, 2^120203211023 is an apocalyptic number.

120203211023 is a deficient number, since it is larger than the sum of its proper divisors (27637308721).

120203211023 is a wasteful number, since it uses less digits than its factorization.

120203211023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16559282.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 120203211023 its reverse (320112302021), we get a palindrome (440315513044).

The spelling of 120203211023 in words is "one hundred twenty billion, two hundred three million, two hundred eleven thousand, twenty-three".