31344432142 has 16 divisors (see below), whose sum is σ = 49793274720. Its totient is φ = 14747079168.

The previous prime is 31344432137. The next prime is 31344432157. The reversal of 31344432142 is 24123444313.

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, 59359 + ... + 257317.

It is an arithmetic number, because the mean of its divisors is an integer number (3112079670).

Almost surely, 2^31344432142 is an apocalyptic number.

31344432142 is a deficient number, since it is larger than the sum of its proper divisors (18448842578).

31344432142 is a wasteful number, since it uses less digits than its factorization.

31344432142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202635.

The product of its digits is 27648, while the sum is 31.

Adding to 31344432142 its reverse (24123444313), we get a palindrome (55467876455).

The spelling of 31344432142 in words is "thirty-one billion, three hundred forty-four million, four hundred thirty-two thousand, one hundred forty-two".