143132213336521 has 4 divisors (see below), whose sum is σ = 143234523712000. Its totient is φ = 143029902961044.

The previous prime is 143132213336477. The next prime is 143132213336551. The reversal of 143132213336521 is 125633312231341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 143132213336521 - 2³⁵ = 143097853598153 is a prime.

It is a super-2 number, since 2×143132213336521² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143132213336551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51155185641 + ... + 51155188438.

It is an arithmetic number, because the mean of its divisors is an integer number (35808630928000).

Almost surely, 2^{143132213336521} is an apocalyptic number.

It is an amenable number.

143132213336521 is a deficient number, since it is larger than the sum of its proper divisors (102310375479).

143132213336521 is a wasteful number, since it uses less digits than its factorization.

143132213336521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102310375478.

The product of its digits is 233280, while the sum is 40.

Adding to 143132213336521 its reverse (125633312231341), we get a palindrome (268765525567862).

The spelling of 143132213336521 in words is "one hundred forty-three trillion, one hundred thirty-two billion, two hundred thirteen million, three hundred thirty-six thousand, five hundred twenty-one".