1000201123 has 2 divisors, whose sum is σ = 1000201124. Its totient is φ = 1000201122.

The previous prime is 1000201063. The next prime is 1000201127. The reversal of 1000201123 is 3211020001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1000201123 - 2²⁹ = 463330211 is a prime.

It is a super-2 number, since 2×1000201123² = 2000804572900922258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1000201127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500100561 + 500100562.

It is an arithmetic number, because the mean of its divisors is an integer number (500100562).

Almost surely, 2^1000201123 is an apocalyptic number.

1000201123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000201123 is an equidigital number, since it uses as much as digits as its factorization.

1000201123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1000201123 is about 31625.9564756546. The cubic root of 1000201123 is about 1000.0670365060.

Adding to 1000201123 its reverse (3211020001), we get a palindrome (4211221124).

The spelling of 1000201123 in words is "one billion, two hundred one thousand, one hundred twenty-three".