12020440444431 has 8 divisors (see below), whose sum is σ = 16027308516864. Its totient is φ = 8013599667480.

The previous prime is 12020440444417. The next prime is 12020440444433. The reversal of 12020440444431 is 13444404402021.

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

It is not a de Polignac number, because 12020440444431 - 2¹⁸ = 12020440182287 is a prime.

It is a super-2 number, since 2×12020440444431² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12020440444392 and 12020440444401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020440444433) 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, 5773201 + ... + 7574346.

It is an arithmetic number, because the mean of its divisors is an integer number (2003413564608).

Almost surely, 2^{12020440444431} is an apocalyptic number.

12020440444431 is a deficient number, since it is larger than the sum of its proper divisors (4006868072433).

12020440444431 is a wasteful number, since it uses less digits than its factorization.

12020440444431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13647741.

The product of its (nonzero) digits is 49152, while the sum is 33.

Adding to 12020440444431 its reverse (13444404402021), we get a palindrome (25464844846452).

The spelling of 12020440444431 in words is "twelve trillion, twenty billion, four hundred forty million, four hundred forty-four thousand, four hundred thirty-one".