131021331103 has 8 divisors (see below), whose sum is σ = 141816140928. Its totient is φ = 120328842144.

The previous prime is 131021331073. The next prime is 131021331169. The reversal of 131021331103 is 301133120131.

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 131021331103 - 2⁵ = 131021331071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131021331503) 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, 25577551 + ... + 25582672.

It is an arithmetic number, because the mean of its divisors is an integer number (17727017616).

Almost surely, 2^131021331103 is an apocalyptic number.

131021331103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

131021331103 is a deficient number, since it is larger than the sum of its proper divisors (10794809825).

131021331103 is a wasteful number, since it uses less digits than its factorization.

131021331103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51160433.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 131021331103 its reverse (301133120131), we get a palindrome (432154451234).

The spelling of 131021331103 in words is "one hundred thirty-one billion, twenty-one million, three hundred thirty-one thousand, one hundred three".