12020502145 has 8 divisors (see below), whose sum is σ = 14607192960. Its totient is φ = 9494674800.

The previous prime is 12020502127. The next prime is 12020502161. The reversal of 12020502145 is 54120502021.

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

It is not a de Polignac number, because 12020502145 - 2⁵ = 12020502113 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15215431 + ... + 15216220.

It is an arithmetic number, because the mean of its divisors is an integer number (1825899120).

Almost surely, 2^12020502145 is an apocalyptic number.

It is an amenable number.

12020502145 is a deficient number, since it is larger than the sum of its proper divisors (2586690815).

12020502145 is an equidigital number, since it uses as much as digits as its factorization.

12020502145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30431735.

The product of its (nonzero) digits is 800, while the sum is 22.

The spelling of 12020502145 in words is "twelve billion, twenty million, five hundred two thousand, one hundred forty-five".