1204201123 has 2 divisors, whose sum is σ = 1204201124. Its totient is φ = 1204201122.

The previous prime is 1204201121. The next prime is 1204201127. The reversal of 1204201123 is 3211024021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1204201123 - 2¹ = 1204201121 is a prime.

It is a super-2 number, since 2×1204201123² = 2900200689268922258, which contains 22 as substring.

Together with 1204201121, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1204201097 and 1204201106.

It is not a weakly prime, because it can be changed into another prime (1204201121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602100561 + 602100562.

It is an arithmetic number, because the mean of its divisors is an integer number (602100562).

Almost surely, 2^1204201123 is an apocalyptic number.

1204201123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1204201123 is an equidigital number, since it uses as much as digits as its factorization.

1204201123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1204201123 is about 34701.6011590243. The cubic root of 1204201123 is about 1063.8972246419.

Adding to 1204201123 its reverse (3211024021), we get a palindrome (4415225144).

The spelling of 1204201123 in words is "one billion, two hundred four million, two hundred one thousand, one hundred twenty-three".