31441421224 has 8 divisors (see below), whose sum is σ = 58952664810. Its totient is φ = 15720710608.

The previous prime is 31441421197. The next prime is 31441421237. The reversal of 31441421224 is 42212414413.

It can be written as a sum of positive squares in only one way, i.e., 30168216100 + 1273205124 = 173690^2 + 35682^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 31441421192 and 31441421201.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1965088819 + ... + 1965088834.

Almost surely, 2^31441421224 is an apocalyptic number.

It is an amenable number.

31441421224 is a deficient number, since it is larger than the sum of its proper divisors (27511243586).

31441421224 is a wasteful number, since it uses less digits than its factorization.

31441421224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3930177659 (or 3930177655 counting only the distinct ones).

The product of its digits is 6144, while the sum is 28.

Adding to 31441421224 its reverse (42212414413), we get a palindrome (73653835637).

The spelling of 31441421224 in words is "thirty-one billion, four hundred forty-one million, four hundred twenty-one thousand, two hundred twenty-four".