87103031 has 2 divisors, whose sum is σ = 87103032. Its totient is φ = 87103030.

The previous prime is 87102997. The next prime is 87103033. The reversal of 87103031 is 13030178.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87103031 - 2¹⁴ = 87086647 is a prime.

It is a super-2 number, since 2×87103031² = 15173876018773922, which contains 22 as substring.

Together with 87103033, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 87102988 and 87103006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87103033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43551515 + 43551516.

It is an arithmetic number, because the mean of its divisors is an integer number (43551516).

Almost surely, 2^87103031 is an apocalyptic number.

87103031 is a deficient number, since it is larger than the sum of its proper divisors (1).

87103031 is an equidigital number, since it uses as much as digits as its factorization.

87103031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 87103031 is about 9332.9004601999. The cubic root of 87103031 is about 443.2796108922.

The spelling of 87103031 in words is "eighty-seven million, one hundred three thousand, thirty-one".