4400523143021 has 8 divisors (see below), whose sum is σ = 4441541516544. Its totient is φ = 4359661030800.

The previous prime is 4400523142957. The next prime is 4400523143053. The reversal of 4400523143021 is 1203413250044.

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

It is a cyclic number.

It is not a de Polignac number, because 4400523143021 - 2⁶ = 4400523142957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4400523163021) 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, 39008741 + ... + 39121386.

It is an arithmetic number, because the mean of its divisors is an integer number (555192689568).

Almost surely, 2^{4400523143021} is an apocalyptic number.

It is an amenable number.

4400523143021 is a deficient number, since it is larger than the sum of its proper divisors (41018373523).

4400523143021 is a wasteful number, since it uses less digits than its factorization.

4400523143021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78130651.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 4400523143021 its reverse (1203413250044), we get a palindrome (5603936393065).

The spelling of 4400523143021 in words is "four trillion, four hundred billion, five hundred twenty-three million, one hundred forty-three thousand, twenty-one".