10143121439 has 8 divisors (see below), whose sum is σ = 11066122368. Its totient is φ = 9220270360.

The previous prime is 10143121427. The next prime is 10143121441. The reversal of 10143121439 is 93412134101.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10143121439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10143121039) 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, 141104 + ... + 200490.

It is an arithmetic number, because the mean of its divisors is an integer number (1383265296).

Almost surely, 2^10143121439 is an apocalyptic number.

10143121439 is a deficient number, since it is larger than the sum of its proper divisors (923000929).

10143121439 is a wasteful number, since it uses less digits than its factorization.

10143121439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74925.

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 10143121439 in words is "ten billion, one hundred forty-three million, one hundred twenty-one thousand, four hundred thirty-nine".