1321402434143 has 8 divisors (see below), whose sum is σ = 1441711873920. Its totient is φ = 1201123318680.

The previous prime is 1321402434103. The next prime is 1321402434251. The reversal of 1321402434143 is 3414342041231.

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

It is a cyclic number.

It is not a de Polignac number, because 1321402434143 - 2³⁴ = 1304222564959 is a prime.

It is a super-2 number, since 2×1321402434143² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321402434103) 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, 7489913 + ... + 7664306.

It is an arithmetic number, because the mean of its divisors is an integer number (180213984240).

Almost surely, 2^{1321402434143} is an apocalyptic number.

1321402434143 is a deficient number, since it is larger than the sum of its proper divisors (120309439777).

1321402434143 is a wasteful number, since it uses less digits than its factorization.

1321402434143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15162157.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 1321402434143 its reverse (3414342041231), we get a palindrome (4735744475374).

The spelling of 1321402434143 in words is "one trillion, three hundred twenty-one billion, four hundred two million, four hundred thirty-four thousand, one hundred forty-three".