104020031 has 2 divisors, whose sum is σ = 104020032. Its totient is φ = 104020030.

The previous prime is 104020019. The next prime is 104020073. The reversal of 104020031 is 130020401.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104020031 is a prime.

It is a super-2 number, since 2×104020031² = 21640333698481922, which contains 22 as substring.

It is a Chen prime.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 104019994 and 104020021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104028031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52010015 + 52010016.

It is an arithmetic number, because the mean of its divisors is an integer number (52010016).

Almost surely, 2^104020031 is an apocalyptic number.

104020031 is a deficient number, since it is larger than the sum of its proper divisors (1).

104020031 is an equidigital number, since it uses as much as digits as its factorization.

104020031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 104020031 is about 10199.0210804763. The cubic root of 104020031 is about 470.2971276477.

Adding to 104020031 its reverse (130020401), we get a palindrome (234040432).

The spelling of 104020031 in words is "one hundred four million, twenty thousand, thirty-one".