103551311 has 4 divisors (see below), whose sum is σ = 109001400. Its totient is φ = 98101224.

The previous prime is 103551269. The next prime is 103551317. The reversal of 103551311 is 113155301.

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-103551311 is a prime.

It is a super-3 number, since 3×103551311³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103551317) 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, 2725016 + ... + 2725053.

It is an arithmetic number, because the mean of its divisors is an integer number (27250350).

Almost surely, 2^103551311 is an apocalyptic number.

103551311 is a deficient number, since it is larger than the sum of its proper divisors (5450089).

103551311 is an equidigital number, since it uses as much as digits as its factorization.

103551311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5450088.

The product of its (nonzero) digits is 225, while the sum is 20.

The square root of 103551311 is about 10176.0164602854. The cubic root of 103551311 is about 469.5896690286.

The spelling of 103551311 in words is "one hundred three million, five hundred fifty-one thousand, three hundred eleven".