2131343231429 has 2 divisors, whose sum is σ = 2131343231430. Its totient is φ = 2131343231428.

The previous prime is 2131343231411. The next prime is 2131343231461. The reversal of 2131343231429 is 9241323431312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1730337668929 + 401005562500 = 1315423^2 + 633250^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2131343231429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2131343231392 and 2131343231401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2131343221429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065671615714 + 1065671615715.

It is an arithmetic number, because the mean of its divisors is an integer number (1065671615715).

Almost surely, 2^{2131343231429} is an apocalyptic number.

It is an amenable number.

2131343231429 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131343231429 is an equidigital number, since it uses as much as digits as its factorization.

2131343231429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 38.

The spelling of 2131343231429 in words is "two trillion, one hundred thirty-one billion, three hundred forty-three million, two hundred thirty-one thousand, four hundred twenty-nine".