12420156283 has 2 divisors, whose sum is σ = 12420156284. Its totient is φ = 12420156282.

The previous prime is 12420156253. The next prime is 12420156299. The reversal of 12420156283 is 38265102421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12420156283 - 2²⁹ = 11883285371 is a prime.

It is not a weakly prime, because it can be changed into another prime (12420156253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6210078141 + 6210078142.

It is an arithmetic number, because the mean of its divisors is an integer number (6210078142).

Almost surely, 2^12420156283 is an apocalyptic number.

12420156283 is a deficient number, since it is larger than the sum of its proper divisors (1).

12420156283 is an equidigital number, since it uses as much as digits as its factorization.

12420156283 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 34.

The spelling of 12420156283 in words is "twelve billion, four hundred twenty million, one hundred fifty-six thousand, two hundred eighty-three".