1243410425234 has 4 divisors (see below), whose sum is σ = 1865115637854. Its totient is φ = 621705212616.

The previous prime is 1243410425203. The next prime is 1243410425249. The reversal of 1243410425234 is 4325240143421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 981987848209 + 261422577025 = 990953^2 + 511295^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1243410425194 and 1243410425203.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310852606307 + ... + 310852606310.

Almost surely, 2^{1243410425234} is an apocalyptic number.

1243410425234 is a deficient number, since it is larger than the sum of its proper divisors (621705212620).

1243410425234 is an equidigital number, since it uses as much as digits as its factorization.

1243410425234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621705212619.

The product of its (nonzero) digits is 92160, while the sum is 35.

Adding to 1243410425234 its reverse (4325240143421), we get a palindrome (5568650568655).

The spelling of 1243410425234 in words is "one trillion, two hundred forty-three billion, four hundred ten million, four hundred twenty-five thousand, two hundred thirty-four".