1243020434134 has 8 divisors (see below), whose sum is σ = 1864870972560. Its totient is φ = 621396776616.

The previous prime is 1243020434119. The next prime is 1243020434171. The reversal of 1243020434134 is 4314340203421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1243020434096 and 1243020434105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56706529 + ... + 56728444.

It is an arithmetic number, because the mean of its divisors is an integer number (233108871570).

Almost surely, 2^{1243020434134} is an apocalyptic number.

1243020434134 is a deficient number, since it is larger than the sum of its proper divisors (621850538426).

1243020434134 is a wasteful number, since it uses less digits than its factorization.

1243020434134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113440454.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 1243020434134 its reverse (4314340203421), we get a palindrome (5557360637555).

The spelling of 1243020434134 in words is "one trillion, two hundred forty-three billion, twenty million, four hundred thirty-four thousand, one hundred thirty-four".