120021111003 has 8 divisors (see below), whose sum is σ = 160087014400. Its totient is φ = 79984640808.

The previous prime is 120021110999. The next prime is 120021111019. The reversal of 120021111003 is 300111120021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120021111003 - 2² = 120021110999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120021111003.

It is not an unprimeable number, because it can be changed into a prime (120021111043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7348783 + ... + 7365096.

It is an arithmetic number, because the mean of its divisors is an integer number (20010876800).

Almost surely, 2^120021111003 is an apocalyptic number.

120021111003 is a deficient number, since it is larger than the sum of its proper divisors (40065903397).

120021111003 is a wasteful number, since it uses less digits than its factorization.

120021111003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14716601.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 120021111003 its reverse (300111120021), we get a palindrome (420132231024).

The spelling of 120021111003 in words is "one hundred twenty billion, twenty-one million, one hundred eleven thousand, three".