203432415451 has 2 divisors, whose sum is σ = 203432415452. Its totient is φ = 203432415450.

The previous prime is 203432415449. The next prime is 203432415463. The reversal of 203432415451 is 154514234302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 203432415451 - 2¹ = 203432415449 is a prime.

Together with 203432415449, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (203432415401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101716207725 + 101716207726.

It is an arithmetic number, because the mean of its divisors is an integer number (101716207726).

Almost surely, 2^203432415451 is an apocalyptic number.

203432415451 is a deficient number, since it is larger than the sum of its proper divisors (1).

203432415451 is an equidigital number, since it uses as much as digits as its factorization.

203432415451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 203432415451 its reverse (154514234302), we get a palindrome (357946649753).

The spelling of 203432415451 in words is "two hundred three billion, four hundred thirty-two million, four hundred fifteen thousand, four hundred fifty-one".