203402741123 has 2 divisors, whose sum is σ = 203402741124. Its totient is φ = 203402741122.

The previous prime is 203402741089. The next prime is 203402741131. The reversal of 203402741123 is 321147204302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 203402741123 - 2²⁶ = 203335632259 is a prime.

It is a super-2 number, since 2×203402741123² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (203402741923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101701370561 + 101701370562.

It is an arithmetic number, because the mean of its divisors is an integer number (101701370562).

Almost surely, 2^203402741123 is an apocalyptic number.

203402741123 is a deficient number, since it is larger than the sum of its proper divisors (1).

203402741123 is an equidigital number, since it uses as much as digits as its factorization.

203402741123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 29.

Adding to 203402741123 its reverse (321147204302), we get a palindrome (524549945425).

The spelling of 203402741123 in words is "two hundred three billion, four hundred two million, seven hundred forty-one thousand, one hundred twenty-three".