10343019991 has 2 divisors, whose sum is σ = 10343019992. Its totient is φ = 10343019990.

The previous prime is 10343019941. The next prime is 10343020043. The reversal of 10343019991 is 19991034301.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10343019991 - 2²⁹ = 9806149079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10343019901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5171509995 + 5171509996.

It is an arithmetic number, because the mean of its divisors is an integer number (5171509996).

Almost surely, 2^10343019991 is an apocalyptic number.

10343019991 is a deficient number, since it is larger than the sum of its proper divisors (1).

10343019991 is an equidigital number, since it uses as much as digits as its factorization.

10343019991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26244, while the sum is 40.

The spelling of 10343019991 in words is "ten billion, three hundred forty-three million, nineteen thousand, nine hundred ninety-one".