131223021103 has 2 divisors, whose sum is σ = 131223021104. Its totient is φ = 131223021102.

The previous prime is 131223021079. The next prime is 131223021107. The reversal of 131223021103 is 301120322131.

It is a strong prime.

It is an emirp because it is prime and its reverse (301120322131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131223021103 - 2⁵ = 131223021071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131223021107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65611510551 + 65611510552.

It is an arithmetic number, because the mean of its divisors is an integer number (65611510552).

Almost surely, 2^131223021103 is an apocalyptic number.

131223021103 is a deficient number, since it is larger than the sum of its proper divisors (1).

131223021103 is an equidigital number, since it uses as much as digits as its factorization.

131223021103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 131223021103 its reverse (301120322131), we get a palindrome (432343343234).

The spelling of 131223021103 in words is "one hundred thirty-one billion, two hundred twenty-three million, twenty-one thousand, one hundred three".