104521031 has 2 divisors, whose sum is σ = 104521032. Its totient is φ = 104521030.

The previous prime is 104521019. The next prime is 104521061. The reversal of 104521031 is 130125401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 104521031 - 2¹⁸ = 104258887 is a prime.

It is a super-2 number, since 2×104521031² = 21849291842605922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104521061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52260515 + 52260516.

It is an arithmetic number, because the mean of its divisors is an integer number (52260516).

Almost surely, 2^104521031 is an apocalyptic number.

104521031 is a deficient number, since it is larger than the sum of its proper divisors (1).

104521031 is an equidigital number, since it uses as much as digits as its factorization.

104521031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 104521031 is about 10223.5527582147. The cubic root of 104521031 is about 471.0509619204.

Adding to 104521031 its reverse (130125401), we get a palindrome (234646432).

The spelling of 104521031 in words is "one hundred four million, five hundred twenty-one thousand, thirty-one".