12020078541 has 8 divisors (see below), whose sum is σ = 16027302400. Its totient is φ = 8013120192.

The previous prime is 12020078537. The next prime is 12020078557. The reversal of 12020078541 is 14587002021.

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

It is not a de Polignac number, because 12020078541 - 2² = 12020078537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12020078499 and 12020078508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020078501) 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, 96021 + ... + 182373.

It is an arithmetic number, because the mean of its divisors is an integer number (2003412800).

Almost surely, 2^12020078541 is an apocalyptic number.

It is an amenable number.

12020078541 is a deficient number, since it is larger than the sum of its proper divisors (4007223859).

12020078541 is an equidigital number, since it uses as much as digits as its factorization.

12020078541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132755.

The product of its (nonzero) digits is 4480, while the sum is 30.

The spelling of 12020078541 in words is "twelve billion, twenty million, seventy-eight thousand, five hundred forty-one".