103555031 has 2 divisors, whose sum is σ = 103555032. Its totient is φ = 103555030.

The previous prime is 103555019. The next prime is 103555037. The reversal of 103555031 is 130555301.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 103555031 - 2¹⁰ = 103554007 is a prime.

It is a super-3 number, since 3×103555031³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 103554988 and 103555006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103555037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51777515 + 51777516.

It is an arithmetic number, because the mean of its divisors is an integer number (51777516).

Almost surely, 2^103555031 is an apocalyptic number.

103555031 is a deficient number, since it is larger than the sum of its proper divisors (1).

103555031 is an equidigital number, since it uses as much as digits as its factorization.

103555031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1125, while the sum is 23.

The square root of 103555031 is about 10176.1992413671. The cubic root of 103555031 is about 469.5952921754.

The spelling of 103555031 in words is "one hundred three million, five hundred fifty-five thousand, thirty-one".