31402433044 has 24 divisors (see below), whose sum is σ = 55472832800. Its totient is φ = 15553127520.

The previous prime is 31402433033. The next prime is 31402433047. The reversal of 31402433044 is 44033420413.

It is a super-2 number, since 2×31402433044² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31402433047) by changing a digit.

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, 2356039 + ... + 2369329.

Almost surely, 2^31402433044 is an apocalyptic number.

It is an amenable number.

31402433044 is a deficient number, since it is larger than the sum of its proper divisors (24070399756).

31402433044 is a wasteful number, since it uses less digits than its factorization.

31402433044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18823 (or 18821 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 31402433044 its reverse (44033420413), we get a palindrome (75435853457).

The spelling of 31402433044 in words is "thirty-one billion, four hundred two million, four hundred thirty-three thousand, forty-four".