1201230020 has 12 divisors (see below), whose sum is σ = 2522583084. Its totient is φ = 480492000.

The previous prime is 1201230011. The next prime is 1201230053. The reversal of 1201230020 is 200321021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 712996804 + 488233216 = 26702^2 + 22096^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1201229983 and 1201230010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30030731 + ... + 30030770.

It is an arithmetic number, because the mean of its divisors is an integer number (210215257).

Almost surely, 2^1201230020 is an apocalyptic number.

1201230020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201230020 is an abundant number, since it is smaller than the sum of its proper divisors (1321353064).

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

1201230020 is a wasteful number, since it uses less digits than its factorization.

1201230020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60061510 (or 60061508 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1201230020 is about 34658.7654136728. The cubic root of 1201230020 is about 1063.0215261133.

Adding to 1201230020 its reverse (200321021), we get a palindrome (1401551041).

The spelling of 1201230020 in words is "one billion, two hundred one million, two hundred thirty thousand, twenty".