4404123131 has 4 divisors (see below), whose sum is σ = 4446881712. Its totient is φ = 4361364552.

The previous prime is 4404123067. The next prime is 4404123137. The reversal of 4404123131 is 1313214044.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4404123131 - 2⁶ = 4404123067 is a prime.

It is a super-2 number, since 2×4404123131² = 38792601106018486322, 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 = 4404123097 and 4404123106.

It is not an unprimeable number, because it can be changed into a prime (4404123137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21379136 + ... + 21379341.

It is an arithmetic number, because the mean of its divisors is an integer number (1111720428).

Almost surely, 2^4404123131 is an apocalyptic number.

4404123131 is a deficient number, since it is larger than the sum of its proper divisors (42758581).

4404123131 is a wasteful number, since it uses less digits than its factorization.

4404123131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42758580.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 4404123131 is about 66363.5677989061. The cubic root of 4404123131 is about 1639.1542251830.

Adding to 4404123131 its reverse (1313214044), we get a palindrome (5717337175).

The spelling of 4404123131 in words is "four billion, four hundred four million, one hundred twenty-three thousand, one hundred thirty-one".