101103551 has 4 divisors (see below), whose sum is σ = 102048552. Its totient is φ = 100158552.

The previous prime is 101103547. The next prime is 101103559. The reversal of 101103551 is 155301101.

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

It is a cyclic number.

It is not a de Polignac number, because 101103551 - 2² = 101103547 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 (101103559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 472340 + ... + 472553.

It is an arithmetic number, because the mean of its divisors is an integer number (25512138).

Almost surely, 2^101103551 is an apocalyptic number.

101103551 is a deficient number, since it is larger than the sum of its proper divisors (945001).

101103551 is an equidigital number, since it uses as much as digits as its factorization.

101103551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945000.

The product of its (nonzero) digits is 75, while the sum is 17.

The square root of 101103551 is about 10055.0261561072. The cubic root of 101103551 is about 465.8600508726.

Adding to 101103551 its reverse (155301101), we get a palindrome (256404652).

The spelling of 101103551 in words is "one hundred one million, one hundred three thousand, five hundred fifty-one".