31122322223130 has 96 divisors (see below), whose sum is σ = 81276390232128. Its totient is φ = 8262561120000.

The previous prime is 31122322223081. The next prime is 31122322223131. The reversal of 31122322223130 is 3132222322113.

31122322223130 is a `hidden beast` number, since 3 + 1 + 1 + 2 + 2 + 322 + 22 + 313 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 31122322223094 and 31122322223103.

It is not an unprimeable number, because it can be changed into a prime (31122322223131) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 50907670 + ... + 51515390.

It is an arithmetic number, because the mean of its divisors is an integer number (846629064918).

Almost surely, 2^{31122322223130} is an apocalyptic number.

31122322223130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31122322223130 is an abundant number, since it is smaller than the sum of its proper divisors (50154068008998).

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

31122322223130 is a wasteful number, since it uses less digits than its factorization.

31122322223130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610252 (or 610249 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 31122322223130 its reverse (3132222322113), we get a palindrome (34254544545243).

The spelling of 31122322223130 in words is "thirty-one trillion, one hundred twenty-two billion, three hundred twenty-two million, two hundred twenty-three thousand, one hundred thirty".