120021321223 has 16 divisors (see below), whose sum is σ = 129198623616. Its totient is φ = 111080240640.

The previous prime is 120021321197. The next prime is 120021321253. The reversal of 120021321223 is 322123120021.

It is a cyclic number.

It is not a de Polignac number, because 120021321223 - 2⁹ = 120021320711 is a prime.

It is a super-2 number, since 2×120021321223² (a number of 23 digits) contains 22 as substring.

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 120021321223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120021321253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4615165 + ... + 4641097.

It is an arithmetic number, because the mean of its divisors is an integer number (8074913976).

Almost surely, 2^120021321223 is an apocalyptic number.

120021321223 is a deficient number, since it is larger than the sum of its proper divisors (9177302393).

120021321223 is a wasteful number, since it uses less digits than its factorization.

120021321223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30474.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 120021321223 its reverse (322123120021), we get a palindrome (442144441244).

The spelling of 120021321223 in words is "one hundred twenty billion, twenty-one million, three hundred twenty-one thousand, two hundred twenty-three".