31022302223 has 6 divisors (see below), whose sum is σ = 34098894312. Its totient is φ = 28202092820.

The previous prime is 31022302187. The next prime is 31022302277. The reversal of 31022302223 is 32220322013.

It is not a de Polignac number, because 31022302223 - 2⁶ = 31022302159 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31022302195 and 31022302204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31022301223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 128191211 + ... + 128191452.

It is an arithmetic number, because the mean of its divisors is an integer number (5683149052).

Almost surely, 2^31022302223 is an apocalyptic number.

31022302223 is a deficient number, since it is larger than the sum of its proper divisors (3076592089).

31022302223 is a wasteful number, since it uses less digits than its factorization.

31022302223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256382685 (or 256382674 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 31022302223 its reverse (32220322013), we get a palindrome (63242624236).

The spelling of 31022302223 in words is "thirty-one billion, twenty-two million, three hundred two thousand, two hundred twenty-three".