203432213401 has 4 divisors (see below), whose sum is σ = 208163195152. Its totient is φ = 198701231652.

The previous prime is 203432213323. The next prime is 203432213417. The reversal of 203432213401 is 104312234302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 203432213401 - 2⁷ = 203432213273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203438213401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2365490811 + ... + 2365490896.

It is an arithmetic number, because the mean of its divisors is an integer number (52040798788).

Almost surely, 2^203432213401 is an apocalyptic number.

It is an amenable number.

203432213401 is a deficient number, since it is larger than the sum of its proper divisors (4730981751).

203432213401 is an equidigital number, since it uses as much as digits as its factorization.

203432213401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4730981750.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 203432213401 its reverse (104312234302), we get a palindrome (307744447703).

The spelling of 203432213401 in words is "two hundred three billion, four hundred thirty-two million, two hundred thirteen thousand, four hundred one".