1025340543901 has 2 divisors, whose sum is σ = 1025340543902. Its totient is φ = 1025340543900.

The previous prime is 1025340543893. The next prime is 1025340543917. The reversal of 1025340543901 is 1093450435201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1000950225625 + 24390318276 = 1000475^2 + 156174^2 .

It is an emirp because it is prime and its reverse (1093450435201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1025340543901 - 2³ = 1025340543893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1025340943901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512670271950 + 512670271951.

It is an arithmetic number, because the mean of its divisors is an integer number (512670271951).

Almost surely, 2^{1025340543901} is an apocalyptic number.

It is an amenable number.

1025340543901 is a deficient number, since it is larger than the sum of its proper divisors (1).

1025340543901 is an equidigital number, since it uses as much as digits as its factorization.

1025340543901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 1025340543901 in words is "one trillion, twenty-five billion, three hundred forty million, five hundred forty-three thousand, nine hundred one".