103533543561 has 32 divisors (see below), whose sum is σ = 161717890048. Its totient is φ = 57684674880.

The previous prime is 103533543559. The next prime is 103533543571. The reversal of 103533543561 is 165345335301.

It is not a de Polignac number, because 103533543561 - 2¹ = 103533543559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103533543521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 415215 + ... + 616011.

It is an arithmetic number, because the mean of its divisors is an integer number (5053684064).

Almost surely, 2^103533543561 is an apocalyptic number.

It is an amenable number.

103533543561 is a deficient number, since it is larger than the sum of its proper divisors (58184346487).

103533543561 is a wasteful number, since it uses less digits than its factorization.

103533543561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201421.

The product of its (nonzero) digits is 243000, while the sum is 39.

Adding to 103533543561 its reverse (165345335301), we get a palindrome (268878878862).

The spelling of 103533543561 in words is "one hundred three billion, five hundred thirty-three million, five hundred forty-three thousand, five hundred sixty-one".