202143023429 has 2 divisors, whose sum is σ = 202143023430. Its totient is φ = 202143023428.

The previous prime is 202143023419. The next prime is 202143023473. The reversal of 202143023429 is 924320341202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101568415204 + 100574608225 = 318698^2 + 317135^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202143023429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202143023395 and 202143023404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202143023419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101071511714 + 101071511715.

It is an arithmetic number, because the mean of its divisors is an integer number (101071511715).

Almost surely, 2^202143023429 is an apocalyptic number.

It is an amenable number.

202143023429 is a deficient number, since it is larger than the sum of its proper divisors (1).

202143023429 is an equidigital number, since it uses as much as digits as its factorization.

202143023429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 32.

The spelling of 202143023429 in words is "two hundred two billion, one hundred forty-three million, twenty-three thousand, four hundred twenty-nine".