131103131221303 has 4 divisors (see below), whose sum is σ = 132576200111520. Its totient is φ = 129630062331088.

The previous prime is 131103131221297. The next prime is 131103131221351. The reversal of 131103131221303 is 303122131301131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131103131221303 is a prime.

It is a super-2 number, since 2×131103131221303² (a number of 29 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 (131103131221393) 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, 736534444975 + ... + 736534445152.

It is an arithmetic number, because the mean of its divisors is an integer number (33144050027880).

Almost surely, 2^{131103131221303} is an apocalyptic number.

131103131221303 is a deficient number, since it is larger than the sum of its proper divisors (1473068890217).

131103131221303 is an equidigital number, since it uses as much as digits as its factorization.

131103131221303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473068890216.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 131103131221303 its reverse (303122131301131), we get a palindrome (434225262522434).

The spelling of 131103131221303 in words is "one hundred thirty-one trillion, one hundred three billion, one hundred thirty-one million, two hundred twenty-one thousand, three hundred three".