10198943831 has 2 divisors, whose sum is σ = 10198943832. Its totient is φ = 10198943830.

The previous prime is 10198943827. The next prime is 10198943873. The reversal of 10198943831 is 13834989101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10198943831 - 2² = 10198943827 is a prime.

It is a super-2 number, since 2×10198943831² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10198943891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5099471915 + 5099471916.

It is an arithmetic number, because the mean of its divisors is an integer number (5099471916).

Almost surely, 2^10198943831 is an apocalyptic number.

10198943831 is a deficient number, since it is larger than the sum of its proper divisors (1).

10198943831 is an equidigital number, since it uses as much as digits as its factorization.

10198943831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 47.

The spelling of 10198943831 in words is "ten billion, one hundred ninety-eight million, nine hundred forty-three thousand, eight hundred thirty-one".