131022103 has 4 divisors (see below), whose sum is σ = 131701168. Its totient is φ = 130343040.

The previous prime is 131022097. The next prime is 131022127. The reversal of 131022103 is 301220131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301220131 = 199 ⋅1513669.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131022103 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 (131022163) 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, 339243 + ... + 339628.

It is an arithmetic number, because the mean of its divisors is an integer number (32925292).

Almost surely, 2^131022103 is an apocalyptic number.

131022103 is a deficient number, since it is larger than the sum of its proper divisors (679065).

131022103 is an equidigital number, since it uses as much as digits as its factorization.

131022103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679064.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 131022103 is about 11446.4886755721. The cubic root of 131022103 is about 507.9038699930.

Adding to 131022103 its reverse (301220131), we get a palindrome (432242234).

The spelling of 131022103 in words is "one hundred thirty-one million, twenty-two thousand, one hundred three".