104903151821 has 12 divisors (see below), whose sum is σ = 115149440628. Its totient is φ = 95507178624.

The previous prime is 104903151797. The next prime is 104903151839. The reversal of 104903151821 is 128151309401.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 7926340900 + 96976810921 = 89030^2 + 311411^2 .

It is not a de Polignac number, because 104903151821 - 2²² = 104898957517 is a prime.

It is a super-2 number, since 2×104903151821² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104903151721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4239230 + ... + 4263903.

It is an arithmetic number, because the mean of its divisors is an integer number (9595786719).

Almost surely, 2^104903151821 is an apocalyptic number.

It is an amenable number.

104903151821 is a deficient number, since it is larger than the sum of its proper divisors (10246288807).

104903151821 is an equidigital number, since it uses as much as digits as its factorization.

104903151821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8503232 (or 8503219 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 35.

The spelling of 104903151821 in words is "one hundred four billion, nine hundred three million, one hundred fifty-one thousand, eight hundred twenty-one".