12052420505531 has 6 divisors (see below), whose sum is σ = 14020162628940. Its totient is φ = 10330646147556.

The previous prime is 12052420505519. The next prime is 12052420505537. The reversal of 12052420505531 is 13550502425021.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-12052420505531 is a prime.

It is a super-2 number, since 2×12052420505531² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12052420505491 and 12052420505500.

It is not an unprimeable number, because it can be changed into a prime (12052420505537) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 122983882661 + ... + 122983882758.

It is an arithmetic number, because the mean of its divisors is an integer number (2336693771490).

Almost surely, 2^{12052420505531} is an apocalyptic number.

12052420505531 is a deficient number, since it is larger than the sum of its proper divisors (1967742123409).

12052420505531 is an equidigital number, since it uses as much as digits as its factorization.

12052420505531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245967765433 (or 245967765426 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 12052420505531 in words is "twelve trillion, fifty-two billion, four hundred twenty million, five hundred five thousand, five hundred thirty-one".