1561010050043 has 2 divisors, whose sum is σ = 1561010050044. Its totient is φ = 1561010050042.

The previous prime is 1561010050003. The next prime is 1561010050121. The reversal of 1561010050043 is 3400500101651.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1561010050043 - 2³⁶ = 1492290573307 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1561010049994 and 1561010050021.

It is not a weakly prime, because it can be changed into another prime (1561010050003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 780505025021 + 780505025022.

It is an arithmetic number, because the mean of its divisors is an integer number (780505025022).

Almost surely, 2^{1561010050043} is an apocalyptic number.

1561010050043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1561010050043 is an equidigital number, since it uses as much as digits as its factorization.

1561010050043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 1561010050043 its reverse (3400500101651), we get a palindrome (4961510151694).

The spelling of 1561010050043 in words is "one trillion, five hundred sixty-one billion, ten million, fifty thousand, forty-three".