1131322310650 has 48 divisors (see below), whose sum is σ = 2509427493504. Its totient is φ = 371017500480.

The previous prime is 1131322310647. The next prime is 1131322310659. The reversal of 1131322310650 is 560132231311.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1131322310659) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70260417 + ... + 70276516.

It is an arithmetic number, because the mean of its divisors is an integer number (52279739448).

Almost surely, 2^{1131322310650} is an apocalyptic number.

1131322310650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1131322310650 is an abundant number, since it is smaller than the sum of its proper divisors (1378105182854).

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

1131322310650 is a wasteful number, since it uses less digits than its factorization.

1131322310650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140536975 (or 140536970 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

Adding to 1131322310650 its reverse (560132231311), we get a palindrome (1691454541961).

The spelling of 1131322310650 in words is "one trillion, one hundred thirty-one billion, three hundred twenty-two million, three hundred ten thousand, six hundred fifty".