31020010221230 has 16 divisors (see below), whose sum is σ = 57761398343520. Its totient is φ = 11980141878432.

The previous prime is 31020010221139. The next prime is 31020010221247. The reversal of 31020010221230 is 3212201002013.

It is a junction number, because it is equal to n+sod(n) for n = 31020010221199 and 31020010221208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53482775954 + ... + 53482776533.

It is an arithmetic number, because the mean of its divisors is an integer number (3610087396470).

Almost surely, 2^{31020010221230} is an apocalyptic number.

31020010221230 is a deficient number, since it is larger than the sum of its proper divisors (26741388122290).

31020010221230 is a wasteful number, since it uses less digits than its factorization.

31020010221230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106965552523.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 31020010221230 its reverse (3212201002013), we get a palindrome (34232211223243).

The spelling of 31020010221230 in words is "thirty-one trillion, twenty billion, ten million, two hundred twenty-one thousand, two hundred thirty".