143042042121 has 16 divisors (see below), whose sum is σ = 208071272448. Its totient is φ = 86687930000.

The previous prime is 143042042071. The next prime is 143042042123. The reversal of 143042042121 is 121240240341.

It is a cyclic number.

It is not a de Polignac number, because 143042042121 - 2⁶ = 143042042057 is a prime.

It is a super-2 number, since 2×143042042121² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 143042042091 and 143042042100.

It is not an unprimeable number, because it can be changed into a prime (143042042123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 667996 + ... + 855746.

It is an arithmetic number, because the mean of its divisors is an integer number (13004454528).

Almost surely, 2^143042042121 is an apocalyptic number.

143042042121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

143042042121 is a deficient number, since it is larger than the sum of its proper divisors (65029230327).

143042042121 is a wasteful number, since it uses less digits than its factorization.

143042042121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210852.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 143042042121 its reverse (121240240341), we get a palindrome (264282282462).

The spelling of 143042042121 in words is "one hundred forty-three billion, forty-two million, forty-two thousand, one hundred twenty-one".