205103190533 has 2 divisors, whose sum is σ = 205103190534. Its totient is φ = 205103190532.

The previous prime is 205103190511. The next prime is 205103190553. The reversal of 205103190533 is 335091301502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 203493014404 + 1610176129 = 451102^2 + 40127^2 .

It is a cyclic number.

It is not a de Polignac number, because 205103190533 - 2¹² = 205103186437 is a prime.

It is a super-2 number, since 2×205103190533² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 205103190533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205103190553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102551595266 + 102551595267.

It is an arithmetic number, because the mean of its divisors is an integer number (102551595267).

Almost surely, 2^205103190533 is an apocalyptic number.

It is an amenable number.

205103190533 is a deficient number, since it is larger than the sum of its proper divisors (1).

205103190533 is an equidigital number, since it uses as much as digits as its factorization.

205103190533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12150, while the sum is 32.

The spelling of 205103190533 in words is "two hundred five billion, one hundred three million, one hundred ninety thousand, five hundred thirty-three".