440211123204131 has 4 divisors (see below), whose sum is σ = 440218183928952. Its totient is φ = 440204062479312.

The previous prime is 440211123204121. The next prime is 440211123204221. The reversal of 440211123204131 is 131402321112044.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-440211123204131 is a prime.

It is a super-2 number, since 2×440211123204131² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 440211123204094 and 440211123204103.

It is not an unprimeable number, because it can be changed into a prime (440211123204121) 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, 3530268890 + ... + 3530393583.

It is an arithmetic number, because the mean of its divisors is an integer number (110054545982238).

Almost surely, 2^{440211123204131} is an apocalyptic number.

440211123204131 is a deficient number, since it is larger than the sum of its proper divisors (7060724821).

440211123204131 is an equidigital number, since it uses as much as digits as its factorization.

440211123204131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7060724820.

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 440211123204131 its reverse (131402321112044), we get a palindrome (571613444316175).

The spelling of 440211123204131 in words is "four hundred forty trillion, two hundred eleven billion, one hundred twenty-three million, two hundred four thousand, one hundred thirty-one".