10643537231 has 2 divisors, whose sum is σ = 10643537232. Its totient is φ = 10643537230.

The previous prime is 10643537227. The next prime is 10643537243. The reversal of 10643537231 is 13273534601.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10643537231 - 2² = 10643537227 is a prime.

It is a super-2 number, since 2×10643537231² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 10643537191 and 10643537200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10643537131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5321768615 + 5321768616.

It is an arithmetic number, because the mean of its divisors is an integer number (5321768616).

Almost surely, 2^10643537231 is an apocalyptic number.

10643537231 is a deficient number, since it is larger than the sum of its proper divisors (1).

10643537231 is an equidigital number, since it uses as much as digits as its factorization.

10643537231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 35.

The spelling of 10643537231 in words is "ten billion, six hundred forty-three million, five hundred thirty-seven thousand, two hundred thirty-one".