31143422422004 has 12 divisors (see below), whose sum is σ = 54517272796224. Its totient is φ = 15567058765944.

The previous prime is 31143422421931. The next prime is 31143422422009. The reversal of 31143422422004 is 40022422434113.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31143422422009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1163096204 + ... + 1163122979.

It is an arithmetic number, because the mean of its divisors is an integer number (4543106066352).

Almost surely, 2^{31143422422004} is an apocalyptic number.

It is an amenable number.

31143422422004 is a deficient number, since it is larger than the sum of its proper divisors (23373850374220).

31143422422004 is a wasteful number, since it uses less digits than its factorization.

31143422422004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2326222534 (or 2326222532 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 31143422422004 its reverse (40022422434113), we get a palindrome (71165844856117).

The spelling of 31143422422004 in words is "thirty-one trillion, one hundred forty-three billion, four hundred twenty-two million, four hundred twenty-two thousand, four".