203853056401 has 2 divisors, whose sum is σ = 203853056402. Its totient is φ = 203853056400.

The previous prime is 203853056387. The next prime is 203853056411. The reversal of 203853056401 is 104650358302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142222511376 + 61630545025 = 377124^2 + 248255^2 .

It is a cyclic number.

It is not a de Polignac number, because 203853056401 - 2²⁵ = 203819501969 is a prime.

It is not a weakly prime, because it can be changed into another prime (203853056411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101926528200 + 101926528201.

It is an arithmetic number, because the mean of its divisors is an integer number (101926528201).

Almost surely, 2^203853056401 is an apocalyptic number.

It is an amenable number.

203853056401 is a deficient number, since it is larger than the sum of its proper divisors (1).

203853056401 is an equidigital number, since it uses as much as digits as its factorization.

203853056401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 203853056401 in words is "two hundred three billion, eight hundred fifty-three million, fifty-six thousand, four hundred one".