1200031120242 has 32 divisors (see below), whose sum is σ = 2666787681600. Its totient is φ = 400002594624.

The previous prime is 1200031120241. The next prime is 1200031120243. The reversal of 1200031120242 is 2420211300021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1200031120241) and next prime (1200031120243).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1200031120241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3035338 + ... + 3407834.

It is an arithmetic number, because the mean of its divisors is an integer number (83337115050).

Almost surely, 2^{1200031120242} is an apocalyptic number.

1200031120242 is an abundant number, since it is smaller than the sum of its proper divisors (1466756561358).

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

1200031120242 is a wasteful number, since it uses less digits than its factorization.

1200031120242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432167 (or 432161 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 1200031120242 its reverse (2420211300021), we get a palindrome (3620242420263).

The spelling of 1200031120242 in words is "one trillion, two hundred billion, thirty-one million, one hundred twenty thousand, two hundred forty-two".