31423201424 has 10 divisors (see below), whose sum is σ = 60882452790. Its totient is φ = 15711600704.

The previous prime is 31423201399. The next prime is 31423201457. The reversal of 31423201424 is 42410232413.

It can be written as a sum of positive squares in only one way, i.e., 24450951424 + 6972250000 = 156368^2 + 83500^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31423201393 and 31423201402.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 981975029 + ... + 981975060.

It is an arithmetic number, because the mean of its divisors is an integer number (6088245279).

Almost surely, 2^31423201424 is an apocalyptic number.

It is an amenable number.

31423201424 is a deficient number, since it is larger than the sum of its proper divisors (29459251366).

31423201424 is a wasteful number, since it uses less digits than its factorization.

31423201424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963950097 (or 1963950091 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 31423201424 its reverse (42410232413), we get a palindrome (73833433837).

The spelling of 31423201424 in words is "thirty-one billion, four hundred twenty-three million, two hundred one thousand, four hundred twenty-four".