1200003100002 has 192 divisors, whose sum is σ = 3022180761600. Its totient is φ = 337062632832.

The previous prime is 1200003099923. The next prime is 1200003100027. The reversal of 1200003100002 is 2000013000021.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1390501423 + ... + 1390502285.

It is an arithmetic number, because the mean of its divisors is an integer number (15740524800).

Almost surely, 2^{1200003100002} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1200003100002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1511090380800).

1200003100002 is an abundant number, since it is smaller than the sum of its proper divisors (1822177661598).

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

1200003100002 is a wasteful number, since it uses less digits than its factorization.

1200003100002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1637 (or 1634 counting only the distinct ones).

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

Adding to 1200003100002 its reverse (2000013000021), we get a palindrome (3200016100023).

The spelling of 1200003100002 in words is "one trillion, two hundred billion, three million, one hundred thousand, two".