104021031 has 8 divisors (see below), whose sum is σ = 139613824. Its totient is φ = 68887800.

The previous prime is 104021003. The next prime is 104021069. The reversal of 104021031 is 130120401.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 104021031 - 2⁶ = 104020967 is a prime.

It is a super-2 number, since 2×104021031² = 21640749780605922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 104020998 and 104021016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104021431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114361 + ... + 115266.

It is an arithmetic number, because the mean of its divisors is an integer number (17451728).

Almost surely, 2^104021031 is an apocalyptic number.

104021031 is a deficient number, since it is larger than the sum of its proper divisors (35592793).

104021031 is a wasteful number, since it uses less digits than its factorization.

104021031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229781.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 104021031 is about 10199.0701046713. The cubic root of 104021031 is about 470.2986347152.

Adding to 104021031 its reverse (130120401), we get a palindrome (234141432).

The spelling of 104021031 in words is "one hundred four million, twenty-one thousand, thirty-one".