31143044002 has 16 divisors (see below), whose sum is σ = 53887032000. Its totient is φ = 13222279728.

The previous prime is 31143043969. The next prime is 31143044003. The reversal of 31143044002 is 20044034113.

It is not an unprimeable number, because it can be changed into a prime (31143044003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10393377 + ... + 10396372.

It is an arithmetic number, because the mean of its divisors is an integer number (3367939500).

Almost surely, 2^31143044002 is an apocalyptic number.

31143044002 is a deficient number, since it is larger than the sum of its proper divisors (22743987998).

31143044002 is a wasteful number, since it uses less digits than its factorization.

31143044002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20789865.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 31143044002 its reverse (20044034113), we get a palindrome (51187078115).

The spelling of 31143044002 in words is "thirty-one billion, one hundred forty-three million, forty-four thousand, two".