31122303223 has 8 divisors (see below), whose sum is σ = 35948756880. Its totient is φ = 26628708480.

The previous prime is 31122303209. The next prime is 31122303241. The reversal of 31122303223 is 32230322113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31122303223 - 2²¹ = 31120206071 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31122303194 and 31122303203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31122303253) 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, 83214528 + ... + 83214901.

It is an arithmetic number, because the mean of its divisors is an integer number (4493594610).

Almost surely, 2^31122303223 is an apocalyptic number.

31122303223 is a deficient number, since it is larger than the sum of its proper divisors (4826453657).

31122303223 is a wasteful number, since it uses less digits than its factorization.

31122303223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166429457.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 31122303223 its reverse (32230322113), we get a palindrome (63352625336).

The spelling of 31122303223 in words is "thirty-one billion, one hundred twenty-two million, three hundred three thousand, two hundred twenty-three".