31143000004 has 12 divisors (see below), whose sum is σ = 54553741200. Its totient is φ = 15556216808.

The previous prime is 31143000001. The next prime is 31143000023. The reversal of 31143000004 is 40000034113.

It is not an unprimeable number, because it can be changed into a prime (31143000001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3816214 + ... + 3824365.

It is an arithmetic number, because the mean of its divisors is an integer number (4546145100).

Almost surely, 2^31143000004 is an apocalyptic number.

It is an amenable number.

31143000004 is a deficient number, since it is larger than the sum of its proper divisors (23410741196).

31143000004 is a wasteful number, since it uses less digits than its factorization.

31143000004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7641602 (or 7641600 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 31143000004 its reverse (40000034113), we get a palindrome (71143034117).

The spelling of 31143000004 in words is "thirty-one billion, one hundred forty-three million, four", and thus it is an aban number.