1284217923013 has 2 divisors, whose sum is σ = 1284217923014. Its totient is φ = 1284217923012.

The previous prime is 1284217922993. The next prime is 1284217923017. The reversal of 1284217923013 is 3103297124821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1270618165089 + 13599757924 = 1127217^2 + 116618^2 .

It is a cyclic number.

It is not a de Polignac number, because 1284217923013 - 2⁹ = 1284217922501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1284217923017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 642108961506 + 642108961507.

It is an arithmetic number, because the mean of its divisors is an integer number (642108961507).

Almost surely, 2^{1284217923013} is an apocalyptic number.

It is an amenable number.

1284217923013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1284217923013 is an equidigital number, since it uses as much as digits as its factorization.

1284217923013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 1284217923013 in words is "one trillion, two hundred eighty-four billion, two hundred seventeen million, nine hundred twenty-three thousand, thirteen".