103557031 has 2 divisors, whose sum is σ = 103557032. Its totient is φ = 103557030.

The previous prime is 103557023. The next prime is 103557073. The reversal of 103557031 is 130755301.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 103557031 - 2³ = 103557023 is a prime.

It is a super-3 number, since 3×103557031³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 103556987 and 103557005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103557001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51778515 + 51778516.

It is an arithmetic number, because the mean of its divisors is an integer number (51778516).

Almost surely, 2^103557031 is an apocalyptic number.

103557031 is a deficient number, since it is larger than the sum of its proper divisors (1).

103557031 is an equidigital number, since it uses as much as digits as its factorization.

103557031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1575, while the sum is 25.

The square root of 103557031 is about 10176.2975094088. The cubic root of 103557031 is about 469.5983153169.

The spelling of 103557031 in words is "one hundred three million, five hundred fifty-seven thousand, thirty-one".