11531331092 has 6 divisors (see below), whose sum is σ = 20179829418. Its totient is φ = 5765665544.

The previous prime is 11531331079. The next prime is 11531331109. The reversal of 11531331092 is 29013313511.

It can be written as a sum of positive squares in only one way, i.e., 11110424836 + 420906256 = 105406^2 + 20516^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1441416383 + ... + 1441416390.

It is an arithmetic number, because the mean of its divisors is an integer number (3363304903).

Almost surely, 2^11531331092 is an apocalyptic number.

It is an amenable number.

11531331092 is a deficient number, since it is larger than the sum of its proper divisors (8648498326).

11531331092 is a wasteful number, since it uses less digits than its factorization.

11531331092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2882832777 (or 2882832775 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 29.

The spelling of 11531331092 in words is "eleven billion, five hundred thirty-one million, three hundred thirty-one thousand, ninety-two".