1200001030002 has 24 divisors (see below), whose sum is σ = 2635618703484. Its totient is φ = 394520886144.

The previous prime is 1200001029989. The next prime is 1200001030037. The reversal of 1200001030002 is 2000301000021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1199596658121 + 404371881 = 1095261^2 + 20109^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 456620083 + ... + 456622710.

Almost surely, 2^{1200001030002} is an apocalyptic number.

1200001030002 is an abundant number, since it is smaller than the sum of its proper divisors (1435617673482).

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

1200001030002 is a wasteful number, since it uses less digits than its factorization.

1200001030002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913242874 (or 913242871 counting only the distinct ones).

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

Adding to 1200001030002 its reverse (2000301000021), we get a palindrome (3200302030023).

The spelling of 1200001030002 in words is "one trillion, two hundred billion, one million, thirty thousand, two".