31143002240044 has 12 divisors (see below), whose sum is σ = 54500318315464. Its totient is φ = 15571482721344.

The previous prime is 31143002240027. The next prime is 31143002240081. The reversal of 31143002240044 is 44004220034113.

It is a junction number, because it is equal to n+sod(n) for n = 31143002239994 and 31143002240021.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356157 + ... + 7900180.

Almost surely, 2^{31143002240044} is an apocalyptic number.

It is an amenable number.

31143002240044 is a deficient number, since it is larger than the sum of its proper divisors (23357316075420).

31143002240044 is a wasteful number, since it uses less digits than its factorization.

31143002240044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9199344 (or 9199342 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 31143002240044 its reverse (44004220034113), we get a palindrome (75147222274157).

The spelling of 31143002240044 in words is "thirty-one trillion, one hundred forty-three billion, two million, two hundred forty thousand, forty-four".