103551031 has 4 divisors (see below), whose sum is σ = 103583992. Its totient is φ = 103518072.

The previous prime is 103551023. The next prime is 103551047. The reversal of 103551031 is 130155301.

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 103551031 - 2³ = 103551023 is a prime.

It is a super-3 number, since 3×103551031³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103551631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11205 + ... + 18238.

It is an arithmetic number, because the mean of its divisors is an integer number (25895998).

Almost surely, 2^103551031 is an apocalyptic number.

103551031 is a deficient number, since it is larger than the sum of its proper divisors (32961).

103551031 is an equidigital number, since it uses as much as digits as its factorization.

103551031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32960.

The product of its (nonzero) digits is 225, while the sum is 19.

The square root of 103551031 is about 10176.0027024367. The cubic root of 103551031 is about 469.5892457756.

The spelling of 103551031 in words is "one hundred three million, five hundred fifty-one thousand, thirty-one".