143406631021 has 8 divisors (see below), whose sum is σ = 143812074240. Its totient is φ = 143001268368.

The previous prime is 143406631007. The next prime is 143406631031. The reversal of 143406631021 is 120136604341.

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-143406631021 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 (143406631031) 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, 6303615 + ... + 6326323.

It is an arithmetic number, because the mean of its divisors is an integer number (17976509280).

Almost surely, 2^143406631021 is an apocalyptic number.

It is an amenable number.

143406631021 is a deficient number, since it is larger than the sum of its proper divisors (405443219).

143406631021 is a wasteful number, since it uses less digits than its factorization.

143406631021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40283.

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 143406631021 in words is "one hundred forty-three billion, four hundred six million, six hundred thirty-one thousand, twenty-one".