143215430121 has 12 divisors (see below), whose sum is σ = 206870510340. Its totient is φ = 95475209760.

The previous prime is 143215430119. The next prime is 143215430143. The reversal of 143215430121 is 121034512341.

143215430121 is a `hidden beast` number, since 1 + 4 + 3 + 215 + 430 + 12 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 136781625600 + 6433804521 = 369840^2 + 80211^2 .

It is not a de Polignac number, because 143215430121 - 2¹ = 143215430119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (143215420121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 549991 + ... + 767411.

It is an arithmetic number, because the mean of its divisors is an integer number (17239209195).

Almost surely, 2^143215430121 is an apocalyptic number.

It is an amenable number.

143215430121 is a deficient number, since it is larger than the sum of its proper divisors (63655080219).

143215430121 is a wasteful number, since it uses less digits than its factorization.

143215430121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290616 (or 290613 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 143215430121 its reverse (121034512341), we get a palindrome (264249942462).

The spelling of 143215430121 in words is "one hundred forty-three billion, two hundred fifteen million, four hundred thirty thousand, one hundred twenty-one".