131231232012029 has 2 divisors, whose sum is σ = 131231232012030. Its totient is φ = 131231232012028.

The previous prime is 131231232012011. The next prime is 131231232012061. The reversal of 131231232012029 is 920210232132131.

It is an a-pointer prime, because the next prime (131231232012061) can be obtained adding 131231232012029 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92791356011929 + 38439876000100 = 9632827^2 + 6199990^2 .

It is a cyclic number.

It is not a de Polignac number, because 131231232012029 - 2⁸ = 131231232011773 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131231232011986 and 131231232012004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131231232012229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65615616006014 + 65615616006015.

It is an arithmetic number, because the mean of its divisors is an integer number (65615616006015).

Almost surely, 2^{131231232012029} is an apocalyptic number.

It is an amenable number.

131231232012029 is a deficient number, since it is larger than the sum of its proper divisors (1).

131231232012029 is an equidigital number, since it uses as much as digits as its factorization.

131231232012029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 32.

The spelling of 131231232012029 in words is "one hundred thirty-one trillion, two hundred thirty-one billion, two hundred thirty-two million, twelve thousand, twenty-nine".