203140403610401 has 4 divisors (see below), whose sum is σ = 205923148865412. Its totient is φ = 200357658355392.

The previous prime is 203140403610373. The next prime is 203140403610409. The reversal of 203140403610401 is 104016304041302.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 156124025401600 + 47016378208801 = 12494960^2 + 6856849^2 .

It is a cyclic number.

It is not a de Polignac number, because 203140403610401 - 2³⁸ = 202865525703457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203140403610409) 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, 1391372627396 + ... + 1391372627541.

It is an arithmetic number, because the mean of its divisors is an integer number (51480787216353).

Almost surely, 2^{203140403610401} is an apocalyptic number.

It is an amenable number.

203140403610401 is a deficient number, since it is larger than the sum of its proper divisors (2782745255011).

203140403610401 is an equidigital number, since it uses as much as digits as its factorization.

203140403610401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2782745255010.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 203140403610401 its reverse (104016304041302), we get a palindrome (307156707651703).

The spelling of 203140403610401 in words is "two hundred three trillion, one hundred forty billion, four hundred three million, six hundred ten thousand, four hundred one".