1057201723 has 2 divisors, whose sum is σ = 1057201724. Its totient is φ = 1057201722.

The previous prime is 1057201631. The next prime is 1057201771. The reversal of 1057201723 is 3271027501.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1057201723 is a prime.

It is a super-2 number, since 2×1057201723² = 2235350966228337458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1057201691 and 1057201700.

It is not a weakly prime, because it can be changed into another prime (1057201823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528600861 + 528600862.

It is an arithmetic number, because the mean of its divisors is an integer number (528600862).

Almost surely, 2^1057201723 is an apocalyptic number.

1057201723 is a deficient number, since it is larger than the sum of its proper divisors (1).

1057201723 is an equidigital number, since it uses as much as digits as its factorization.

1057201723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 1057201723 is about 32514.6385955618. The cubic root of 1057201723 is about 1018.7148118976.

The spelling of 1057201723 in words is "one billion, fifty-seven million, two hundred one thousand, seven hundred twenty-three".