10323938561 has 2 divisors, whose sum is σ = 10323938562. Its totient is φ = 10323938560.

The previous prime is 10323938557. The next prime is 10323938659. The reversal of 10323938561 is 16583932301.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7636138225 + 2687800336 = 87385^2 + 51844^2 .

It is an emirp because it is prime and its reverse (16583932301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10323938561 - 2² = 10323938557 is a prime.

It is a super-2 number, since 2×10323938561² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10323938761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5161969280 + 5161969281.

It is an arithmetic number, because the mean of its divisors is an integer number (5161969281).

Almost surely, 2^10323938561 is an apocalyptic number.

It is an amenable number.

10323938561 is a deficient number, since it is larger than the sum of its proper divisors (1).

10323938561 is an equidigital number, since it uses as much as digits as its factorization.

10323938561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 41.

The spelling of 10323938561 in words is "ten billion, three hundred twenty-three million, nine hundred thirty-eight thousand, five hundred sixty-one".