31223432542004 has 6 divisors (see below), whose sum is σ = 54641006948514. Its totient is φ = 15611716271000.

The previous prime is 31223432541967. The next prime is 31223432542031. The reversal of 31223432542004 is 40024523432213.

It can be written as a sum of positive squares in only one way, i.e., 29493023839504 + 1730408702500 = 5430748^2 + 1315450^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3902929067747 + ... + 3902929067754.

It is an arithmetic number, because the mean of its divisors is an integer number (9106834491419).

Almost surely, 2^{31223432542004} is an apocalyptic number.

It is an amenable number.

31223432542004 is a deficient number, since it is larger than the sum of its proper divisors (23417574406510).

31223432542004 is a wasteful number, since it uses less digits than its factorization.

31223432542004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7805858135505 (or 7805858135503 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 35.

Adding to 31223432542004 its reverse (40024523432213), we get a palindrome (71247955974217).

The spelling of 31223432542004 in words is "thirty-one trillion, two hundred twenty-three billion, four hundred thirty-two million, five hundred forty-two thousand, four".