31203203430241 has 4 divisors (see below), whose sum is σ = 31964257172484. Its totient is φ = 30442149688000.

The previous prime is 31203203430211. The next prime is 31203203430251. The reversal of 31203203430241 is 14203430230213.

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 2445767571025 + 28757435859216 = 1563895^2 + 5362596^2 .

It is a cyclic number.

It is not a de Polignac number, because 31203203430241 - 2⁵ = 31203203430209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31203203430211) 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, 380526871060 + ... + 380526871141.

It is an arithmetic number, because the mean of its divisors is an integer number (7991064293121).

Almost surely, 2^{31203203430241} is an apocalyptic number.

It is an amenable number.

31203203430241 is a deficient number, since it is larger than the sum of its proper divisors (761053742243).

31203203430241 is an equidigital number, since it uses as much as digits as its factorization.

31203203430241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761053742242.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 31203203430241 its reverse (14203430230213), we get a palindrome (45406633660454).

The spelling of 31203203430241 in words is "thirty-one trillion, two hundred three billion, two hundred three million, four hundred thirty thousand, two hundred forty-one".