31143060638 has 16 divisors (see below), whose sum is σ = 46982073600. Its totient is φ = 15482572800.

The previous prime is 31143060593. The next prime is 31143060649. The reversal of 31143060638 is 83606034113.

It is a junction number, because it is equal to n+sod(n) for n = 31143060598 and 31143060607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258563 + ... + 359361.

It is an arithmetic number, because the mean of its divisors is an integer number (2936379600).

Almost surely, 2^31143060638 is an apocalyptic number.

31143060638 is a deficient number, since it is larger than the sum of its proper divisors (15839012962).

31143060638 is a wasteful number, since it uses less digits than its factorization.

31143060638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101683.

The product of its (nonzero) digits is 31104, while the sum is 35.

The spelling of 31143060638 in words is "thirty-one billion, one hundred forty-three million, sixty thousand, six hundred thirty-eight".