1203210000000 has 768 divisors, whose sum is σ = 4486892810400. Its totient is φ = 309120000000.

The previous prime is 1203209999983. The next prime is 1203210000007. The reversal of 1203210000000 is 123021.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 1163136366144 + 40073633856 = 1078488^2 + 200184^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1203210000007) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2609999770 + ... + 2610000230.

Almost surely, 2^{1203210000000} is an apocalyptic number.

1203210000000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1203210000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2243446405200).

1203210000000 is an abundant number, since it is smaller than the sum of its proper divisors (3283682810400).

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

1203210000000 is an frugal number, since it uses more digits than its factorization.

1203210000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545 (or 500 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 1203210000000 its reverse (123021), we get a palindrome (1203210123021).

The spelling of 1203210000000 in words is "one trillion, two hundred three billion, two hundred ten million", and thus it is an aban number.