445511043231 has 4 divisors (see below), whose sum is σ = 594014724312. Its totient is φ = 297007362152.

The previous prime is 445511043209. The next prime is 445511043233. The reversal of 445511043231 is 132340115544.

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 445511043231 - 2¹⁷ = 445510912159 is a prime.

It is a super-2 number, since 2×445511043231² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 445511043192 and 445511043201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445511043233) 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, 74251840536 + ... + 74251840541.

It is an arithmetic number, because the mean of its divisors is an integer number (148503681078).

Almost surely, 2^445511043231 is an apocalyptic number.

445511043231 is a deficient number, since it is larger than the sum of its proper divisors (148503681081).

445511043231 is a wasteful number, since it uses less digits than its factorization.

445511043231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148503681080.

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 445511043231 its reverse (132340115544), we get a palindrome (577851158775).

The spelling of 445511043231 in words is "four hundred forty-five billion, five hundred eleven million, forty-three thousand, two hundred thirty-one".