143204121252 has 36 divisors (see below), whose sum is σ = 363490243116. Its totient is φ = 47536634880.

The previous prime is 143204121239. The next prime is 143204121257. The reversal of 143204121252 is 252121402341.

It can be written as a sum of positive squares in 2 ways, for example, as 56542181796 + 86661939456 = 237786^2 + 294384^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×143204121252³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (143204121257) 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, 8244213 + ... + 8261564.

Almost surely, 2^143204121252 is an apocalyptic number.

143204121252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

143204121252 is an abundant number, since it is smaller than the sum of its proper divisors (220286121864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143204121252 is a wasteful number, since it uses less digits than its factorization.

143204121252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16506028 (or 16506023 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 143204121252 its reverse (252121402341), we get a palindrome (395325523593).

The spelling of 143204121252 in words is "one hundred forty-three billion, two hundred four million, one hundred twenty-one thousand, two hundred fifty-two".