131301021029 has 2 divisors, whose sum is σ = 131301021030. Its totient is φ = 131301021028.

The previous prime is 131301021011. The next prime is 131301021067. The reversal of 131301021029 is 920120103131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101520616129 + 29780404900 = 318623^2 + 172570^2 .

It is a cyclic number.

It is not a de Polignac number, because 131301021029 - 2²⁴ = 131284243813 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131301020995 and 131301021013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131301027029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65650510514 + 65650510515.

It is an arithmetic number, because the mean of its divisors is an integer number (65650510515).

Almost surely, 2^131301021029 is an apocalyptic number.

It is an amenable number.

131301021029 is a deficient number, since it is larger than the sum of its proper divisors (1).

131301021029 is an equidigital number, since it uses as much as digits as its factorization.

131301021029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 23.

The spelling of 131301021029 in words is "one hundred thirty-one billion, three hundred one million, twenty-one thousand, twenty-nine".