11731481319045 has 16 divisors (see below), whose sum is σ = 18772369097472. Its totient is φ = 6256123707840.

The previous prime is 11731481319037. The next prime is 11731481319059. The reversal of 11731481319045 is 54091318413711.

It is not a de Polignac number, because 11731481319045 - 2³ = 11731481319037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11731481318985 and 11731481319003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41500002 + ... + 41781731.

It is an arithmetic number, because the mean of its divisors is an integer number (1173273068592).

Almost surely, 2^{11731481319045} is an apocalyptic number.

11731481319045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11731481319045 is a deficient number, since it is larger than the sum of its proper divisors (7040887778427).

11731481319045 is an equidigital number, since it uses as much as digits as its factorization.

11731481319045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83291132.

The product of its (nonzero) digits is 362880, while the sum is 48.

The spelling of 11731481319045 in words is "eleven trillion, seven hundred thirty-one billion, four hundred eighty-one million, three hundred nineteen thousand, forty-five".