1201020310020 has 48 divisors (see below), whose sum is σ = 3363065133120. Its totient is φ = 320252247936.

The previous prime is 1201020309991. The next prime is 1201020310081. The reversal of 1201020310020 is 200130201021.

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 = 1201020309978 and 1201020310005.

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, 370126 + ... + 1593434.

It is an arithmetic number, because the mean of its divisors is an integer number (70063856940).

Almost surely, 2^{1201020310020} is an apocalyptic number.

1201020310020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201020310020 is an abundant number, since it is smaller than the sum of its proper divisors (2162044823100).

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

1201020310020 is a wasteful number, since it uses less digits than its factorization.

1201020310020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239684 (or 1239682 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 1201020310020 its reverse (200130201021), we get a palindrome (1401150511041).

The spelling of 1201020310020 in words is "one trillion, two hundred one billion, twenty million, three hundred ten thousand, twenty".