103431556573 has 2 divisors, whose sum is σ = 103431556574. Its totient is φ = 103431556572.

The previous prime is 103431556493. The next prime is 103431556609. The reversal of 103431556573 is 375655134301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59164238169 + 44267318404 = 243237^2 + 210398^2 .

It is an emirp because it is prime and its reverse (375655134301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 103431556573 - 2¹⁷ = 103431425501 is a prime.

It is a super-2 number, since 2×103431556573² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103431556373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51715778286 + 51715778287.

It is an arithmetic number, because the mean of its divisors is an integer number (51715778287).

Almost surely, 2^103431556573 is an apocalyptic number.

It is an amenable number.

103431556573 is a deficient number, since it is larger than the sum of its proper divisors (1).

103431556573 is an equidigital number, since it uses as much as digits as its factorization.

103431556573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 567000, while the sum is 43.

The spelling of 103431556573 in words is "one hundred three billion, four hundred thirty-one million, five hundred fifty-six thousand, five hundred seventy-three".