31103321210030 has 16 divisors (see below), whose sum is σ = 55986041671920. Its totient is φ = 12441314374272.

The previous prime is 31103321210009. The next prime is 31103321210033. The reversal of 31103321210030 is 3001212330113.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31103321209984 and 31103321210011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31103321210033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16553606 + ... + 18336534.

It is an arithmetic number, because the mean of its divisors is an integer number (3499127604495).

Almost surely, 2^{31103321210030} is an apocalyptic number.

31103321210030 is a deficient number, since it is larger than the sum of its proper divisors (24882720461890).

31103321210030 is a wasteful number, since it uses less digits than its factorization.

31103321210030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3527443.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 31103321210030 its reverse (3001212330113), we get a palindrome (34104533540143).

The spelling of 31103321210030 in words is "thirty-one trillion, one hundred three billion, three hundred twenty-one million, two hundred ten thousand, thirty".