1131211841100 has 72 divisors (see below), whose sum is σ = 3570515930688. Its totient is φ = 274233172800.

The previous prime is 1131211841059. The next prime is 1131211841159. The reversal of 1131211841100 is 11481121311.

It is a happy number.

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, 171392434 + ... + 171399033.

Almost surely, 2^{1131211841100} is an apocalyptic number.

1131211841100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131211841100 is an abundant number, since it is smaller than the sum of its proper divisors (2439304089588).

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

1131211841100 is a wasteful number, since it uses less digits than its factorization.

1131211841100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342791495 (or 342791488 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 24.

Adding to 1131211841100 its reverse (11481121311), we get a palindrome (1142692962411).

The spelling of 1131211841100 in words is "one trillion, one hundred thirty-one billion, two hundred eleven million, eight hundred forty-one thousand, one hundred".