420120401112 has 128 divisors (see below), whose sum is σ = 1175452723200. Its totient is φ = 139027104000.

The previous prime is 420120401081. The next prime is 420120401147. The reversal of 420120401112 is 211104021024.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74394273 + ... + 74399919.

It is an arithmetic number, because the mean of its divisors is an integer number (9183224400).

Almost surely, 2^420120401112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 420120401112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (587726361600).

420120401112 is an abundant number, since it is smaller than the sum of its proper divisors (755332322088).

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

420120401112 is a wasteful number, since it uses less digits than its factorization.

420120401112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8094 (or 8084 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 420120401112 its reverse (211104021024), we get a palindrome (631224422136).

The spelling of 420120401112 in words is "four hundred twenty billion, one hundred twenty million, four hundred one thousand, one hundred twelve".