61323451043 has 2 divisors, whose sum is σ = 61323451044. Its totient is φ = 61323451042.

The previous prime is 61323451001. The next prime is 61323451051. The reversal of 61323451043 is 34015432316.

61323451043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61323451043 - 2²⁰ = 61322402467 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (61323451543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30661725521 + 30661725522.

It is an arithmetic number, because the mean of its divisors is an integer number (30661725522).

Almost surely, 2^61323451043 is an apocalyptic number.

61323451043 is a deficient number, since it is larger than the sum of its proper divisors (1).

61323451043 is an equidigital number, since it uses as much as digits as its factorization.

61323451043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 32.

Adding to 61323451043 its reverse (34015432316), we get a palindrome (95338883359).

The spelling of 61323451043 in words is "sixty-one billion, three hundred twenty-three million, four hundred fifty-one thousand, forty-three".