120202021123 has 8 divisors (see below), whose sum is σ = 123264620640. Its totient is φ = 117177466560.

The previous prime is 120202021111. The next prime is 120202021127. The reversal of 120202021123 is 321120202021.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120202021123 is a prime.

It is a super-2 number, since 2×120202021123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120202021097 and 120202021106.

It is not an unprimeable number, because it can be changed into a prime (120202021127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9504840 + ... + 9517477.

It is an arithmetic number, because the mean of its divisors is an integer number (15408077580).

Almost surely, 2^120202021123 is an apocalyptic number.

120202021123 is a deficient number, since it is larger than the sum of its proper divisors (3062599517).

120202021123 is an equidigital number, since it uses as much as digits as its factorization.

120202021123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19022477.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 120202021123 its reverse (321120202021), we get a palindrome (441322223144).

The spelling of 120202021123 in words is "one hundred twenty billion, two hundred two million, twenty-one thousand, one hundred twenty-three".