1420100120 has 64 divisors (see below), whose sum is σ = 3243875040. Its totient is φ = 559436800.

The previous prime is 1420100119. The next prime is 1420100131. The reversal of 1420100120 is 210010241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1729310 + ... + 1730130.

Almost surely, 2^1420100120 is an apocalyptic number.

1420100120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1420100120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1621937520).

1420100120 is an abundant number, since it is smaller than the sum of its proper divisors (1823774920).

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

1420100120 is a wasteful number, since it uses less digits than its factorization.

1420100120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1436 (or 1432 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1420100120 is about 37684.2157938838. The cubic root of 1420100120 is about 1124.0172804172.

Adding to 1420100120 its reverse (210010241), we get a palindrome (1630110361).

The spelling of 1420100120 in words is "one billion, four hundred twenty million, one hundred thousand, one hundred twenty".