28103166031 has 2 divisors, whose sum is σ = 28103166032. Its totient is φ = 28103166030.

The previous prime is 28103165983. The next prime is 28103166071. The reversal of 28103166031 is 13066130182.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28103166031 - 2⁷ = 28103165903 is a prime.

It is a super-2 number, since 2×28103166031² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28103165984 and 28103166002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28103166071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14051583015 + 14051583016.

It is an arithmetic number, because the mean of its divisors is an integer number (14051583016).

Almost surely, 2^28103166031 is an apocalyptic number.

28103166031 is a deficient number, since it is larger than the sum of its proper divisors (1).

28103166031 is an equidigital number, since it uses as much as digits as its factorization.

28103166031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The spelling of 28103166031 in words is "twenty-eight billion, one hundred three million, one hundred sixty-six thousand, thirty-one".