1234213451473 has 2 divisors, whose sum is σ = 1234213451474. Its totient is φ = 1234213451472.

The previous prime is 1234213451377. The next prime is 1234213451477. The reversal of 1234213451473 is 3741543124321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1174204130449 + 60009321024 = 1083607^2 + 244968^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1234213451473 is a prime.

It is not a weakly prime, because it can be changed into another prime (1234213451477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 617106725736 + 617106725737.

It is an arithmetic number, because the mean of its divisors is an integer number (617106725737).

Almost surely, 2^{1234213451473} is an apocalyptic number.

It is an amenable number.

1234213451473 is a deficient number, since it is larger than the sum of its proper divisors (1).

1234213451473 is an equidigital number, since it uses as much as digits as its factorization.

1234213451473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 40.

Adding to 1234213451473 its reverse (3741543124321), we get a palindrome (4975756575794).

The spelling of 1234213451473 in words is "one trillion, two hundred thirty-four billion, two hundred thirteen million, four hundred fifty-one thousand, four hundred seventy-three".