1200303020020 has 48 divisors (see below), whose sum is σ = 2717006595408. Its totient is φ = 442784701440.

The previous prime is 1200303019991. The next prime is 1200303020041. The reversal of 1200303020020 is 200203030021.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 386998456464 + 813304563556 = 622092^2 + 901834^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

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, 1818951 + ... + 2389390.

It is an arithmetic number, because the mean of its divisors is an integer number (56604304071).

Almost surely, 2^{1200303020020} is an apocalyptic number.

1200303020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200303020020 is an abundant number, since it is smaller than the sum of its proper divisors (1516703575388).

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

1200303020020 is a wasteful number, since it uses less digits than its factorization.

1200303020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4209460 (or 4209458 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 1200303020020 its reverse (200203030021), we get a palindrome (1400506050041).

The spelling of 1200303020020 in words is "one trillion, two hundred billion, three hundred three million, twenty thousand, twenty".