1083131128749 has 4 divisors (see below), whose sum is σ = 1444174838336. Its totient is φ = 722087419164.

The previous prime is 1083131128613. The next prime is 1083131128757. The reversal of 1083131128749 is 9478211313801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1083131128749 - 2⁹ = 1083131128237 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1083131128698 and 1083131128707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1083131128799) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180521854789 + ... + 180521854794.

It is an arithmetic number, because the mean of its divisors is an integer number (361043709584).

Almost surely, 2^{1083131128749} is an apocalyptic number.

It is an amenable number.

1083131128749 is a deficient number, since it is larger than the sum of its proper divisors (361043709587).

1083131128749 is an equidigital number, since it uses as much as digits as its factorization.

1083131128749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361043709586.

The product of its (nonzero) digits is 290304, while the sum is 48.

The spelling of 1083131128749 in words is "one trillion, eighty-three billion, one hundred thirty-one million, one hundred twenty-eight thousand, seven hundred forty-nine".