1057021145723 has 2 divisors, whose sum is σ = 1057021145724. Its totient is φ = 1057021145722.

The previous prime is 1057021145711. The next prime is 1057021145729. The reversal of 1057021145723 is 3275411207501.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1057021145723 is a prime.

It is a super-2 number, since 2×1057021145723² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1057021145729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528510572861 + 528510572862.

It is an arithmetic number, because the mean of its divisors is an integer number (528510572862).

Almost surely, 2^{1057021145723} is an apocalyptic number.

1057021145723 is a deficient number, since it is larger than the sum of its proper divisors (1).

1057021145723 is an equidigital number, since it uses as much as digits as its factorization.

1057021145723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58800, while the sum is 38.

The spelling of 1057021145723 in words is "one trillion, fifty-seven billion, twenty-one million, one hundred forty-five thousand, seven hundred twenty-three".