103540531999 has 2 divisors, whose sum is σ = 103540532000. Its totient is φ = 103540531998.

The previous prime is 103540531973. The next prime is 103540532033. The reversal of 103540531999 is 999135045301.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 103540531999 - 2⁵ = 103540531967 is a prime.

It is a super-3 number, since 3×103540531999³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103540531799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51770265999 + 51770266000.

It is an arithmetic number, because the mean of its divisors is an integer number (51770266000).

Almost surely, 2^103540531999 is an apocalyptic number.

103540531999 is a deficient number, since it is larger than the sum of its proper divisors (1).

103540531999 is an equidigital number, since it uses as much as digits as its factorization.

103540531999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 656100, while the sum is 49.

The spelling of 103540531999 in words is "one hundred three billion, five hundred forty million, five hundred thirty-one thousand, nine hundred ninety-nine".