1023434617871 has 2 divisors, whose sum is σ = 1023434617872. Its totient is φ = 1023434617870.

The previous prime is 1023434617867. The next prime is 1023434617901. The reversal of 1023434617871 is 1787164343201.

It is a weak prime.

It is an emirp because it is prime and its reverse (1787164343201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1023434617871 - 2² = 1023434617867 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1023434613871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511717308935 + 511717308936.

It is an arithmetic number, because the mean of its divisors is an integer number (511717308936).

Almost surely, 2^{1023434617871} is an apocalyptic number.

1023434617871 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023434617871 is an equidigital number, since it uses as much as digits as its factorization.

1023434617871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 677376, while the sum is 47.

The spelling of 1023434617871 in words is "one trillion, twenty-three billion, four hundred thirty-four million, six hundred seventeen thousand, eight hundred seventy-one".