131020203112103 has 2 divisors, whose sum is σ = 131020203112104. Its totient is φ = 131020203112102.

The previous prime is 131020203112087. The next prime is 131020203112147. The reversal of 131020203112103 is 301211302020131.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131020203112103 - 2⁴ = 131020203112087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131020203112193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65510101556051 + 65510101556052.

It is an arithmetic number, because the mean of its divisors is an integer number (65510101556052).

Almost surely, 2^{131020203112103} is an apocalyptic number.

131020203112103 is a deficient number, since it is larger than the sum of its proper divisors (1).

131020203112103 is an equidigital number, since it uses as much as digits as its factorization.

131020203112103 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 20.

Adding to 131020203112103 its reverse (301211302020131), we get a palindrome (432231505132234).

The spelling of 131020203112103 in words is "one hundred thirty-one trillion, twenty billion, two hundred three million, one hundred twelve thousand, one hundred three".