120021331323 has 8 divisors (see below), whose sum is σ = 160043211328. Its totient is φ = 80006836104.

The previous prime is 120021331303. The next prime is 120021331351. The reversal of 120021331323 is 323133120021.

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

It is not a de Polignac number, because 120021331323 - 2²¹ = 120019234171 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 120021331323.

It is not an unprimeable number, because it can be changed into a prime (120021331303) 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 7 ways as a sum of consecutive naturals, for example, 1808161 + ... + 1873362.

It is an arithmetic number, because the mean of its divisors is an integer number (20005401416).

Almost surely, 2^120021331323 is an apocalyptic number.

120021331323 is a deficient number, since it is larger than the sum of its proper divisors (40021880005).

120021331323 is a wasteful number, since it uses less digits than its factorization.

120021331323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3692393.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 120021331323 its reverse (323133120021), we get a palindrome (443154451344).

The spelling of 120021331323 in words is "one hundred twenty billion, twenty-one million, three hundred thirty-one thousand, three hundred twenty-three".