31650224012 has 12 divisors (see below), whose sum is σ = 60423155016. Its totient is φ = 14386465440.

The previous prime is 31650223973. The next prime is 31650224063. The reversal of 31650224012 is 21042205613.

It is a happy number.

It is a super-2 number, since 2×31650224012² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 359661593 + ... + 359661680.

It is an arithmetic number, because the mean of its divisors is an integer number (5035262918).

Almost surely, 2^31650224012 is an apocalyptic number.

It is an amenable number.

31650224012 is a deficient number, since it is larger than the sum of its proper divisors (28772931004).

31650224012 is a wasteful number, since it uses less digits than its factorization.

31650224012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719323288 (or 719323286 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 31650224012 its reverse (21042205613), we get a palindrome (52692429625).

The spelling of 31650224012 in words is "thirty-one billion, six hundred fifty million, two hundred twenty-four thousand, twelve".