7023401681 has 2 divisors, whose sum is σ = 7023401682. Its totient is φ = 7023401680.

The previous prime is 7023401677. The next prime is 7023401683. The reversal of 7023401681 is 1861043207.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6902951056 + 120450625 = 83084^2 + 10975^2 .

It is a cyclic number.

It is not a de Polignac number, because 7023401681 - 2² = 7023401677 is a prime.

It is a super-2 number, since 2×7023401681² = 98656342345347251522, which contains 22 as substring.

Together with 7023401683, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7023401683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3511700840 + 3511700841.

It is an arithmetic number, because the mean of its divisors is an integer number (3511700841).

Almost surely, 2^7023401681 is an apocalyptic number.

It is an amenable number.

7023401681 is a deficient number, since it is larger than the sum of its proper divisors (1).

7023401681 is an equidigital number, since it uses as much as digits as its factorization.

7023401681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 7023401681 is about 83805.7377570295. The cubic root of 7023401681 is about 1915.0605166904.

Adding to 7023401681 its reverse (1861043207), we get a palindrome (8884444888).

The spelling of 7023401681 in words is "seven billion, twenty-three million, four hundred one thousand, six hundred eighty-one".