203401311411 has 16 divisors (see below), whose sum is σ = 271624346784. Its totient is φ = 135389739264.

The previous prime is 203401311403. The next prime is 203401311433. The reversal of 203401311411 is 114113104302.

It is not a de Polignac number, because 203401311411 - 2³ = 203401311403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (203401319411) 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 in 15 ways as a sum of consecutive naturals, for example, 5289225 + ... + 5327541.

It is an arithmetic number, because the mean of its divisors is an integer number (16976521674).

Almost surely, 2^203401311411 is an apocalyptic number.

203401311411 is a deficient number, since it is larger than the sum of its proper divisors (68223035373).

203401311411 is a wasteful number, since it uses less digits than its factorization.

203401311411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41030.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 203401311411 its reverse (114113104302), we get a palindrome (317514415713).

The spelling of 203401311411 in words is "two hundred three billion, four hundred one million, three hundred eleven thousand, four hundred eleven".