103556443531 has 2 divisors, whose sum is σ = 103556443532. Its totient is φ = 103556443530.

The previous prime is 103556443519. The next prime is 103556443559. The reversal of 103556443531 is 135344655301.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 103556443531 - 2⁹ = 103556443019 is a prime.

It is a super-3 number, since 3×103556443531³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (103556443511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51778221765 + 51778221766.

It is an arithmetic number, because the mean of its divisors is an integer number (51778221766).

Almost surely, 2^103556443531 is an apocalyptic number.

103556443531 is a deficient number, since it is larger than the sum of its proper divisors (1).

103556443531 is an equidigital number, since it uses as much as digits as its factorization.

103556443531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324000, while the sum is 40.

The spelling of 103556443531 in words is "one hundred three billion, five hundred fifty-six million, four hundred forty-three thousand, five hundred thirty-one".