31122110320230 has 16 divisors (see below), whose sum is σ = 74693064768624. Its totient is φ = 8299229418720.

The previous prime is 31122110320211. The next prime is 31122110320237. The reversal of 31122110320230 is 3202301122113.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31122110320197 and 31122110320206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31122110320237) 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, 518701838641 + ... + 518701838700.

It is an arithmetic number, because the mean of its divisors is an integer number (4668316548039).

Almost surely, 2^{31122110320230} is an apocalyptic number.

31122110320230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31122110320230 is an abundant number, since it is smaller than the sum of its proper divisors (43570954448394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31122110320230 is a wasteful number, since it uses less digits than its factorization.

31122110320230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1037403677351.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 31122110320230 its reverse (3202301122113), we get a palindrome (34324411442343).

The spelling of 31122110320230 in words is "thirty-one trillion, one hundred twenty-two billion, one hundred ten million, three hundred twenty thousand, two hundred thirty".