31434440124 has 48 divisors (see below), whose sum is σ = 76818631680. Its totient is φ = 9985567680.

The previous prime is 31434440111. The next prime is 31434440129. The reversal of 31434440124 is 42104443413.

It is a super-2 number, since 2×31434440124² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31434440091 and 31434440100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31434440129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135339 + ... + 284930.

It is an arithmetic number, because the mean of its divisors is an integer number (1600388160).

Almost surely, 2^31434440124 is an apocalyptic number.

It is an amenable number.

31434440124 is an abundant number, since it is smaller than the sum of its proper divisors (45384191556).

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

31434440124 is a wasteful number, since it uses less digits than its factorization.

31434440124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420570 (or 420568 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 31434440124 its reverse (42104443413), we get a palindrome (73538883537).

The spelling of 31434440124 in words is "thirty-one billion, four hundred thirty-four million, four hundred forty thousand, one hundred twenty-four".