1131204400002 has 48 divisors (see below), whose sum is σ = 2490053005440. Its totient is φ = 371082288096.

The previous prime is 1131204399973. The next prime is 1131204400021. The reversal of 1131204400002 is 2000044021311.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 859053 + ... + 1732160.

It is an arithmetic number, because the mean of its divisors is an integer number (51876104280).

Almost surely, 2^{1131204400002} is an apocalyptic number.

1131204400002 is an abundant number, since it is smaller than the sum of its proper divisors (1358848605438).

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

1131204400002 is a wasteful number, since it uses less digits than its factorization.

1131204400002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2591607 (or 2591604 counting only the distinct ones).

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

Adding to 1131204400002 its reverse (2000044021311), we get a palindrome (3131248421313).

The spelling of 1131204400002 in words is "one trillion, one hundred thirty-one billion, two hundred four million, four hundred thousand, two".