31854314142 has 24 divisors (see below), whose sum is σ = 78877349616. Its totient is φ = 9101232576.

The previous prime is 31854314137. The next prime is 31854314153. The reversal of 31854314142 is 24141345813.

31854314142 is a `hidden beast` number, since 3 + 1 + 85 + 431 + 4 + 142 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 31854314097 and 31854314106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 126405883 + ... + 126406134.

It is an arithmetic number, because the mean of its divisors is an integer number (3286556234).

Almost surely, 2^31854314142 is an apocalyptic number.

31854314142 is an abundant number, since it is smaller than the sum of its proper divisors (47023035474).

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

31854314142 is a wasteful number, since it uses less digits than its factorization.

31854314142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252812032 (or 252812029 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

Adding to 31854314142 its reverse (24141345813), we get a palindrome (55995659955).

The spelling of 31854314142 in words is "thirty-one billion, eight hundred fifty-four million, three hundred fourteen thousand, one hundred forty-two".