105431031503 has 8 divisors (see below), whose sum is σ = 120498384000. Its totient is φ = 90365123160.

The previous prime is 105431031481. The next prime is 105431031529. The reversal of 105431031503 is 305130134501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 105431031503 - 2¹⁴ = 105431015119 is a prime.

It is a super-2 number, since 2×105431031503² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105431033503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199793 + ... + 500778.

It is an arithmetic number, because the mean of its divisors is an integer number (15062298000).

Almost surely, 2^105431031503 is an apocalyptic number.

105431031503 is a deficient number, since it is larger than the sum of its proper divisors (15067352497).

105431031503 is an equidigital number, since it uses as much as digits as its factorization.

105431031503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722077.

The product of its (nonzero) digits is 2700, while the sum is 26.

The spelling of 105431031503 in words is "one hundred five billion, four hundred thirty-one million, thirty-one thousand, five hundred three".