203112311343441 has 16 divisors (see below), whose sum is σ = 275927064148800. Its totient is φ = 132852899816000.

The previous prime is 203112311343433. The next prime is 203112311343443. The reversal of 203112311343441 is 144343113211302.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 203112311343441 - 2³ = 203112311343433 is a prime.

It is a super-2 number, since 2×203112311343441² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (203112311343443) 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, 50682691 + ... + 54543191.

It is an arithmetic number, because the mean of its divisors is an integer number (17245441509300).

Almost surely, 2^{203112311343441} is an apocalyptic number.

It is an amenable number.

203112311343441 is a deficient number, since it is larger than the sum of its proper divisors (72814752805359).

203112311343441 is a wasteful number, since it uses less digits than its factorization.

203112311343441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4191456.

The product of its (nonzero) digits is 20736, while the sum is 33.

Adding to 203112311343441 its reverse (144343113211302), we get a palindrome (347455424554743).

The spelling of 203112311343441 in words is "two hundred three trillion, one hundred twelve billion, three hundred eleven million, three hundred forty-three thousand, four hundred forty-one".