143401140421 has 32 divisors (see below), whose sum is σ = 179351377920. Its totient is φ = 111388305600.

The previous prime is 143401140413. The next prime is 143401140457. The reversal of 143401140421 is 124041104341.

It is not a de Polignac number, because 143401140421 - 2³ = 143401140413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143401140821) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38557200 + ... + 38560918.

It is an arithmetic number, because the mean of its divisors is an integer number (5604730560).

Almost surely, 2^143401140421 is an apocalyptic number.

143401140421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

143401140421 is a deficient number, since it is larger than the sum of its proper divisors (35950237499).

143401140421 is a wasteful number, since it uses less digits than its factorization.

143401140421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5185.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 143401140421 its reverse (124041104341), we get a palindrome (267442244762).

The spelling of 143401140421 in words is "one hundred forty-three billion, four hundred one million, one hundred forty thousand, four hundred twenty-one".