1321042000434 has 16 divisors (see below), whose sum is σ = 2845321231872. Its totient is φ = 406474461648.

The previous prime is 1321042000433. The next prime is 1321042000513. The reversal of 1321042000434 is 4340002401231.

It is not an unprimeable number, because it can be changed into a prime (1321042000433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8468217874 + ... + 8468218029.

It is an arithmetic number, because the mean of its divisors is an integer number (177832576992).

Almost surely, 2^{1321042000434} is an apocalyptic number.

1321042000434 is an abundant number, since it is smaller than the sum of its proper divisors (1524279231438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1321042000434 is a wasteful number, since it uses less digits than its factorization.

1321042000434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16936435921.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 1321042000434 its reverse (4340002401231), we get a palindrome (5661044401665).

The spelling of 1321042000434 in words is "one trillion, three hundred twenty-one billion, forty-two million, four hundred thirty-four", and thus it is an aban number.