1420201320 has 64 divisors (see below), whose sum is σ = 4263995520. Its totient is φ = 378418944.

The previous prime is 1420201313. The next prime is 1420201327. The reversal of 1420201320 is 231020241.

It is an interprime number because it is at equal distance from previous prime (1420201313) and next prime (1420201327).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1420201320.

It is not an unprimeable number, because it can be changed into a prime (1420201327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175197 + ... + 183123.

It is an arithmetic number, because the mean of its divisors is an integer number (66624930).

Almost surely, 2^1420201320 is an apocalyptic number.

1420201320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1420201320 is an abundant number, since it is smaller than the sum of its proper divisors (2843794200).

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

1420201320 is a wasteful number, since it uses less digits than its factorization.

1420201320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9434 (or 9430 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1420201320 is about 37685.5585072054. The cubic root of 1420201320 is about 1124.0439799072.

Adding to 1420201320 its reverse (231020241), we get a palindrome (1651221561).

The spelling of 1420201320 in words is "one billion, four hundred twenty million, two hundred one thousand, three hundred twenty".