31143012131342 has 16 divisors (see below), whose sum is σ = 46757298870672. Its totient is φ = 15557246415360.

The previous prime is 31143012131339. The next prime is 31143012131417. The reversal of 31143012131342 is 24313121034113.

It is a super-2 number, since 2×31143012131342² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

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, 139117742 + ... + 139341422.

It is an arithmetic number, because the mean of its divisors is an integer number (2922331179417).

Almost surely, 2^{31143012131342} is an apocalyptic number.

31143012131342 is a deficient number, since it is larger than the sum of its proper divisors (15614286739330).

31143012131342 is a wasteful number, since it uses less digits than its factorization.

31143012131342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287123.

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 31143012131342 its reverse (24313121034113), we get a palindrome (55456133165455).

The spelling of 31143012131342 in words is "thirty-one trillion, one hundred forty-three billion, twelve million, one hundred thirty-one thousand, three hundred forty-two".