31143303044 has 24 divisors (see below), whose sum is σ = 62310409728. Its totient is φ = 13342029120.

The previous prime is 31143303031. The next prime is 31143303083. The reversal of 31143303044 is 44030334113.

It is a happy number.

It is a super-3 number, since 3×31143303044³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

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, 137492 + ... + 284939.

It is an arithmetic number, because the mean of its divisors is an integer number (2596267072).

Almost surely, 2^31143303044 is an apocalyptic number.

It is an amenable number.

31143303044 is an abundant number, since it is smaller than the sum of its proper divisors (31167106684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31143303044 is a wasteful number, since it uses less digits than its factorization.

31143303044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425075 (or 425073 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 31143303044 its reverse (44030334113), we get a palindrome (75173637157).

The spelling of 31143303044 in words is "thirty-one billion, one hundred forty-three million, three hundred three thousand, forty-four".