103555621011 has 8 divisors (see below), whose sum is σ = 138316824720. Its totient is φ = 68915748992.

The previous prime is 103555620997. The next prime is 103555621019. The reversal of 103555621011 is 110126555301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 103555621011 - 2⁶ = 103555620947 is a prime.

It is a super-3 number, since 3×103555621011³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 103555621011.

It is not an unprimeable number, because it can be changed into a prime (103555621019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30330930 + ... + 30334343.

It is an arithmetic number, because the mean of its divisors is an integer number (17289603090).

Almost surely, 2^103555621011 is an apocalyptic number.

103555621011 is a deficient number, since it is larger than the sum of its proper divisors (34761203709).

103555621011 is an equidigital number, since it uses as much as digits as its factorization.

103555621011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60665845.

The product of its (nonzero) digits is 4500, while the sum is 30.

The spelling of 103555621011 in words is "one hundred three billion, five hundred fifty-five million, six hundred twenty-one thousand, eleven".