131122210123 has 2 divisors, whose sum is σ = 131122210124. Its totient is φ = 131122210122.

The previous prime is 131122210099. The next prime is 131122210127. The reversal of 131122210123 is 321012221131.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131122210123 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131122210123.

It is not a weakly prime, because it can be changed into another prime (131122210127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65561105061 + 65561105062.

It is an arithmetic number, because the mean of its divisors is an integer number (65561105062).

Almost surely, 2^131122210123 is an apocalyptic number.

131122210123 is a deficient number, since it is larger than the sum of its proper divisors (1).

131122210123 is an equidigital number, since it uses as much as digits as its factorization.

131122210123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 131122210123 its reverse (321012221131), we get a palindrome (452134431254).

The spelling of 131122210123 in words is "one hundred thirty-one billion, one hundred twenty-two million, two hundred ten thousand, one hundred twenty-three".