1201204020 has 48 divisors (see below), whose sum is σ = 3561219648. Its totient is φ = 301478400.

The previous prime is 1201203989. The next prime is 1201204033. The reversal of 1201204020 is 204021021.

1201204020 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1201203987 and 1201204005.

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, 587806 + ... + 589845.

It is an arithmetic number, because the mean of its divisors is an integer number (74192076).

Almost surely, 2^1201204020 is an apocalyptic number.

1201204020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201204020 is an abundant number, since it is smaller than the sum of its proper divisors (2360015628).

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

1201204020 is a wasteful number, since it uses less digits than its factorization.

1201204020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177680 (or 1177678 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1201204020 is about 34658.3903261533. The cubic root of 1201204020 is about 1063.0138565417.

Adding to 1201204020 its reverse (204021021), we get a palindrome (1405225041).

The spelling of 1201204020 in words is "one billion, two hundred one million, two hundred four thousand, twenty".