1723257011051 has 2 divisors, whose sum is σ = 1723257011052. Its totient is φ = 1723257011050.

The previous prime is 1723257011039. The next prime is 1723257011053. The reversal of 1723257011051 is 1501107523271.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1723257011051 is a prime.

It is a super-2 number, since 2×1723257011051² (a number of 25 digits) contains 22 as substring.

Together with 1723257011053, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1723257011053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 861628505525 + 861628505526.

It is an arithmetic number, because the mean of its divisors is an integer number (861628505526).

Almost surely, 2^{1723257011051} is an apocalyptic number.

1723257011051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1723257011051 is an equidigital number, since it uses as much as digits as its factorization.

1723257011051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14700, while the sum is 35.

The spelling of 1723257011051 in words is "one trillion, seven hundred twenty-three billion, two hundred fifty-seven million, eleven thousand, fifty-one".