143124521111221 has 8 divisors (see below), whose sum is σ = 154141640382744. Its totient is φ = 132108479086080.

The previous prime is 143124521111207. The next prime is 143124521111233. The reversal of 143124521111221 is 122111125421341.

143124521111221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 6030162898321 + 137094358212900 = 2455639^2 + 11708730^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 143124521111221 - 2¹³ = 143124521103029 is a prime.

It is a super-2 number, since 2×143124521111221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143124521111521) 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, 269035636 + ... + 269567101.

It is an arithmetic number, because the mean of its divisors is an integer number (19267705047843).

Almost surely, 2^{143124521111221} is an apocalyptic number.

It is an amenable number.

143124521111221 is a deficient number, since it is larger than the sum of its proper divisors (11017119271523).

143124521111221 is a wasteful number, since it uses less digits than its factorization.

143124521111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538623191.

The product of its digits is 3840, while the sum is 31.

Adding to 143124521111221 its reverse (122111125421341), we get a palindrome (265235646532562).

The spelling of 143124521111221 in words is "one hundred forty-three trillion, one hundred twenty-four billion, five hundred twenty-one million, one hundred eleven thousand, two hundred twenty-one".