143120211421 has 16 divisors (see below), whose sum is σ = 156712200768. Its totient is φ = 129625974400.

The previous prime is 143120211379. The next prime is 143120211461. The reversal of 143120211421 is 124112021341.

It is a cyclic number.

It is not a de Polignac number, because 143120211421 - 2⁷ = 143120211293 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143120211392 and 143120211401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143120211461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3204375 + ... + 3248731.

It is an arithmetic number, because the mean of its divisors is an integer number (9794512548).

Almost surely, 2^143120211421 is an apocalyptic number.

143120211421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

143120211421 is a deficient number, since it is larger than the sum of its proper divisors (13591989347).

143120211421 is a wasteful number, since it uses less digits than its factorization.

143120211421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45452.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 143120211421 its reverse (124112021341), we get a palindrome (267232232762).

The spelling of 143120211421 in words is "one hundred forty-three billion, one hundred twenty million, two hundred eleven thousand, four hundred twenty-one".