104221031 has 2 divisors, whose sum is σ = 104221032. Its totient is φ = 104221030.

The previous prime is 104221009. The next prime is 104221037. The reversal of 104221031 is 130122401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 104221031 - 2⁶ = 104220967 is a prime.

It is a super-2 number, since 2×104221031² = 21724046605405922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 104220997 and 104221015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104221037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52110515 + 52110516.

It is an arithmetic number, because the mean of its divisors is an integer number (52110516).

Almost surely, 2^104221031 is an apocalyptic number.

104221031 is a deficient number, since it is larger than the sum of its proper divisors (1).

104221031 is an equidigital number, since it uses as much as digits as its factorization.

104221031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 104221031 is about 10208.8702117325. The cubic root of 104221031 is about 470.5998542790.

Adding to 104221031 its reverse (130122401), we get a palindrome (234343432).

The spelling of 104221031 in words is "one hundred four million, two hundred twenty-one thousand, thirty-one".