1243434401044 has 36 divisors (see below), whose sum is σ = 2393729012500. Its totient is φ = 564744660480.

The previous prime is 1243434401039. The next prime is 1243434401063. The reversal of 1243434401044 is 4401044343421.

It can be written as a sum of positive squares in 2 ways, for example, as 338710032144 + 904724368900 = 581988^2 + 951170^2 .

It is a super-2 number, since 2×1243434401044² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 423939 + ... + 1632970.

Almost surely, 2^{1243434401044} is an apocalyptic number.

It is an amenable number.

1243434401044 is a deficient number, since it is larger than the sum of its proper divisors (1150294611456).

1243434401044 is a wasteful number, since it uses less digits than its factorization.

1243434401044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2058184 (or 2058171 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 1243434401044 its reverse (4401044343421), we get a palindrome (5644478744465).

The spelling of 1243434401044 in words is "one trillion, two hundred forty-three billion, four hundred thirty-four million, four hundred one thousand, forty-four".