31143000310042 has 16 divisors (see below), whose sum is σ = 47367339465600. Its totient is φ = 15354399790080.

The previous prime is 31143000309961. The next prime is 31143000310069. The reversal of 31143000310042 is 24001300034113.

It is a super-2 number, since 2×31143000310042² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31143000309995 and 31143000310022.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128036884 + ... + 128279887.

It is an arithmetic number, because the mean of its divisors is an integer number (2960458716600).

Almost surely, 2^{31143000310042} is an apocalyptic number.

31143000310042 is a deficient number, since it is larger than the sum of its proper divisors (16224339155558).

31143000310042 is a wasteful number, since it uses less digits than its factorization.

31143000310042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256317621.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 31143000310042 its reverse (24001300034113), we get a palindrome (55144300344155).

The spelling of 31143000310042 in words is "thirty-one trillion, one hundred forty-three billion, three hundred ten thousand, forty-two".