131103312020123 has 2 divisors, whose sum is σ = 131103312020124. Its totient is φ = 131103312020122.

The previous prime is 131103312020053. The next prime is 131103312020143. The reversal of 131103312020123 is 321020213301131.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131103312020123 is a prime.

It is not a weakly prime, because it can be changed into another prime (131103312020143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65551656010061 + 65551656010062.

It is an arithmetic number, because the mean of its divisors is an integer number (65551656010062).

Almost surely, 2^{131103312020123} is an apocalyptic number.

131103312020123 is a deficient number, since it is larger than the sum of its proper divisors (1).

131103312020123 is an equidigital number, since it uses as much as digits as its factorization.

131103312020123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 131103312020123 its reverse (321020213301131), we get a palindrome (452123525321254).

The spelling of 131103312020123 in words is "one hundred thirty-one trillion, one hundred three billion, three hundred twelve million, twenty thousand, one hundred twenty-three".