203212043121413 has 2 divisors, whose sum is σ = 203212043121414. Its totient is φ = 203212043121412.

The previous prime is 203212043121397. The next prime is 203212043121431. The reversal of 203212043121413 is 314121340212302.

It is a happy number.

Together with next prime (203212043121431) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110705792109124 + 92506251012289 = 10521682^2 + 9618017^2 .

It is a cyclic number.

It is not a de Polignac number, because 203212043121413 - 2⁴ = 203212043121397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203212043121473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101606021560706 + 101606021560707.

It is an arithmetic number, because the mean of its divisors is an integer number (101606021560707).

Almost surely, 2^{203212043121413} is an apocalyptic number.

It is an amenable number.

203212043121413 is a deficient number, since it is larger than the sum of its proper divisors (1).

203212043121413 is an equidigital number, since it uses as much as digits as its factorization.

203212043121413 is an evil number, because the sum of its binary digits is even.

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

Adding to 203212043121413 its reverse (314121340212302), we get a palindrome (517333383333715).

The spelling of 203212043121413 in words is "two hundred three trillion, two hundred twelve billion, forty-three million, one hundred twenty-one thousand, four hundred thirteen".