203434132403 has 2 divisors, whose sum is σ = 203434132404. Its totient is φ = 203434132402.

The previous prime is 203434132367. The next prime is 203434132481. The reversal of 203434132403 is 304231434302.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203434132403 is a prime.

It is a super-2 number, since 2×203434132403² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (203434132903) 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, 101717066201 + 101717066202.

It is an arithmetic number, because the mean of its divisors is an integer number (101717066202).

Almost surely, 2^203434132403 is an apocalyptic number.

203434132403 is a deficient number, since it is larger than the sum of its proper divisors (1).

203434132403 is an equidigital number, since it uses as much as digits as its factorization.

203434132403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 203434132403 its reverse (304231434302), we get a palindrome (507665566705).

The spelling of 203434132403 in words is "two hundred three billion, four hundred thirty-four million, one hundred thirty-two thousand, four hundred three".