1203541123 has 2 divisors, whose sum is σ = 1203541124. Its totient is φ = 1203541122.

The previous prime is 1203541057. The next prime is 1203541127. The reversal of 1203541123 is 3211453021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1203541123 - 2¹³ = 1203532931 is a prime.

It is a super-2 number, since 2×1203541123² = 2897022469504202258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1203541094 and 1203541103.

It is not a weakly prime, because it can be changed into another prime (1203541127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601770561 + 601770562.

It is an arithmetic number, because the mean of its divisors is an integer number (601770562).

Almost surely, 2^1203541123 is an apocalyptic number.

1203541123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1203541123 is an equidigital number, since it uses as much as digits as its factorization.

1203541123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1203541123 is about 34692.0902079999. The cubic root of 1203541123 is about 1063.7028217645.

Adding to 1203541123 its reverse (3211453021), we get a palindrome (4414994144).

The spelling of 1203541123 in words is "one billion, two hundred three million, five hundred forty-one thousand, one hundred twenty-three".