1973065156423 has 2 divisors, whose sum is σ = 1973065156424. Its totient is φ = 1973065156422.

The previous prime is 1973065156421. The next prime is 1973065156429. The reversal of 1973065156423 is 3246515603791.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1973065156423 - 2¹ = 1973065156421 is a prime.

It is a super-2 number, since 2×1973065156423² (a number of 25 digits) contains 22 as substring.

Together with 1973065156421, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1973065156421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 986532578211 + 986532578212.

It is an arithmetic number, because the mean of its divisors is an integer number (986532578212).

Almost surely, 2^{1973065156423} is an apocalyptic number.

1973065156423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1973065156423 is an equidigital number, since it uses as much as digits as its factorization.

1973065156423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4082400, while the sum is 52.

The spelling of 1973065156423 in words is "one trillion, nine hundred seventy-three billion, sixty-five million, one hundred fifty-six thousand, four hundred twenty-three".