120420211231320 has 512 divisors, whose sum is σ = 510578159616000. Its totient is φ = 21881920296960.

The previous prime is 120420211231319. The next prime is 120420211231343. The reversal of 120420211231320 is 23132112024021.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 24099280 + ... + 28663839.

It is an arithmetic number, because the mean of its divisors is an integer number (997222968000).

Almost surely, 2^{120420211231320} is an apocalyptic number.

120420211231320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120420211231320 is an abundant number, since it is smaller than the sum of its proper divisors (390157948384680).

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

120420211231320 is a wasteful number, since it uses less digits than its factorization.

120420211231320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52763183 (or 52763179 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 120420211231320 its reverse (23132112024021), we get a palindrome (143552323255341).

The spelling of 120420211231320 in words is "one hundred twenty trillion, four hundred twenty billion, two hundred eleven million, two hundred thirty-one thousand, three hundred twenty".