143111422031 has 16 divisors (see below), whose sum is σ = 154823135616. Its totient is φ = 131768211456.

The previous prime is 143111422021. The next prime is 143111422061. The reversal of 143111422031 is 130224111341.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143111422031 is a prime.

It is a super-2 number, since 2×143111422031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143111421988 and 143111422006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143111422021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1796315 + ... + 1874291.

It is an arithmetic number, because the mean of its divisors is an integer number (9676445976).

Almost surely, 2^143111422031 is an apocalyptic number.

143111422031 is a deficient number, since it is larger than the sum of its proper divisors (11711713585).

143111422031 is a wasteful number, since it uses less digits than its factorization.

143111422031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80338.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 143111422031 its reverse (130224111341), we get a palindrome (273335533372).

The spelling of 143111422031 in words is "one hundred forty-three billion, one hundred eleven million, four hundred twenty-two thousand, thirty-one".