131011122029 has 2 divisors, whose sum is σ = 131011122030. Its totient is φ = 131011122028.

The previous prime is 131011122017. The next prime is 131011122091. The reversal of 131011122029 is 920221110131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67017301129 + 63993820900 = 258877^2 + 252970^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131011122029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131011121995 and 131011122013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131011122929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65505561014 + 65505561015.

It is an arithmetic number, because the mean of its divisors is an integer number (65505561015).

Almost surely, 2^131011122029 is an apocalyptic number.

It is an amenable number.

131011122029 is a deficient number, since it is larger than the sum of its proper divisors (1).

131011122029 is an equidigital number, since it uses as much as digits as its factorization.

131011122029 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 23.

The spelling of 131011122029 in words is "one hundred thirty-one billion, eleven million, one hundred twenty-two thousand, twenty-nine".