31434423004 has 72 divisors (see below), whose sum is σ = 60199908048. Its totient is φ = 14349553920.

The previous prime is 31434423001. The next prime is 31434423073. The reversal of 31434423004 is 40032443413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31434423001) 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 23 ways as a sum of consecutive naturals, for example, 4910734 + ... + 4917130.

It is an arithmetic number, because the mean of its divisors is an integer number (836109834).

Almost surely, 2^31434423004 is an apocalyptic number.

It is an amenable number.

31434423004 is a deficient number, since it is larger than the sum of its proper divisors (28765485044).

31434423004 is a wasteful number, since it uses less digits than its factorization.

31434423004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6563 (or 6542 counting only the distinct ones).

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

Adding to 31434423004 its reverse (40032443413), we get a palindrome (71466866417).

The spelling of 31434423004 in words is "thirty-one billion, four hundred thirty-four million, four hundred twenty-three thousand, four".