1083917391731 has 4 divisors (see below), whose sum is σ = 1084002331032. Its totient is φ = 1083832452432.

The previous prime is 1083917391719. The next prime is 1083917391749. The reversal of 1083917391731 is 1371937193801.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1083917391731 - 2²² = 1083913197427 is a prime.

It is a super-2 number, since 2×1083917391731² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1083917391031) 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, 42450506 + ... + 42476031.

It is an arithmetic number, because the mean of its divisors is an integer number (271000582758).

Almost surely, 2^{1083917391731} is an apocalyptic number.

1083917391731 is a deficient number, since it is larger than the sum of its proper divisors (84939301).

1083917391731 is an equidigital number, since it uses as much as digits as its factorization.

1083917391731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84939300.

The product of its (nonzero) digits is 857304, while the sum is 53.

The spelling of 1083917391731 in words is "one trillion, eighty-three billion, nine hundred seventeen million, three hundred ninety-one thousand, seven hundred thirty-one".