1562123023213 has 2 divisors, whose sum is σ = 1562123023214. Its totient is φ = 1562123023212.

The previous prime is 1562123023189. The next prime is 1562123023231. The reversal of 1562123023213 is 3123203212651.

Together with next prime (1562123023231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1549233281124 + 12889742089 = 1244682^2 + 113533^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1562123023213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1562123323213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 781061511606 + 781061511607.

It is an arithmetic number, because the mean of its divisors is an integer number (781061511607).

Almost surely, 2^{1562123023213} is an apocalyptic number.

It is an amenable number.

1562123023213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1562123023213 is an equidigital number, since it uses as much as digits as its factorization.

1562123023213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 1562123023213 its reverse (3123203212651), we get a palindrome (4685326235864).

The spelling of 1562123023213 in words is "one trillion, five hundred sixty-two billion, one hundred twenty-three million, twenty-three thousand, two hundred thirteen".