120042123320 has 32 divisors (see below), whose sum is σ = 308679746400. Its totient is φ = 41157299328.

The previous prime is 120042123317. The next prime is 120042123323. The reversal of 120042123320 is 23321240021.

It is an interprime number because it is at equal distance from previous prime (120042123317) and next prime (120042123323).

It is a super-2 number, since 2×120042123320² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 120042123292 and 120042123301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120042123323) 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, 214360655 + ... + 214361214.

It is an arithmetic number, because the mean of its divisors is an integer number (9646242075).

Almost surely, 2^120042123320 is an apocalyptic number.

120042123320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120042123320 is an abundant number, since it is smaller than the sum of its proper divisors (188637623080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120042123320 is a wasteful number, since it uses less digits than its factorization.

120042123320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428721887 (or 428721883 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 120042123320 its reverse (23321240021), we get a palindrome (143363363341).

The spelling of 120042123320 in words is "one hundred twenty billion, forty-two million, one hundred twenty-three thousand, three hundred twenty".