101030405543 has 4 divisors (see below), whose sum is σ = 101036141160. Its totient is φ = 101024669928.

The previous prime is 101030405501. The next prime is 101030405563. The reversal of 101030405543 is 345504030101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101030405543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101030405563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2841305 + ... + 2876642.

It is an arithmetic number, because the mean of its divisors is an integer number (25259035290).

Almost surely, 2^101030405543 is an apocalyptic number.

101030405543 is a deficient number, since it is larger than the sum of its proper divisors (5735617).

101030405543 is an equidigital number, since it uses as much as digits as its factorization.

101030405543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5735616.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 101030405543 its reverse (345504030101), we get a palindrome (446534435644).

The spelling of 101030405543 in words is "one hundred one billion, thirty million, four hundred five thousand, five hundred forty-three".