120021103131103 has 4 divisors (see below), whose sum is σ = 121988662198888. Its totient is φ = 118053544063320.

The previous prime is 120021103131031. The next prime is 120021103131109. The reversal of 120021103131103 is 301131301120021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120021103131103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120021103131109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 983779533801 + ... + 983779533922.

It is an arithmetic number, because the mean of its divisors is an integer number (30497165549722).

Almost surely, 2^{120021103131103} is an apocalyptic number.

120021103131103 is a deficient number, since it is larger than the sum of its proper divisors (1967559067785).

120021103131103 is an equidigital number, since it uses as much as digits as its factorization.

120021103131103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1967559067784.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 120021103131103 its reverse (301131301120021), we get a palindrome (421152404251124).

The spelling of 120021103131103 in words is "one hundred twenty trillion, twenty-one billion, one hundred three million, one hundred thirty-one thousand, one hundred three".