31223103223 has 8 divisors (see below), whose sum is σ = 34445000016. Its totient is φ = 28118366400.

The previous prime is 31223103209. The next prime is 31223103229. The reversal of 31223103223 is 32230132213.

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

It is a cyclic number.

It is not a de Polignac number, because 31223103223 - 2¹³ = 31223095031 is a prime.

It is a super-2 number, since 2×31223103223² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31223103194 and 31223103203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31223103229) 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, 29289433 + ... + 29290498.

It is an arithmetic number, because the mean of its divisors is an integer number (4305625002).

Almost surely, 2^31223103223 is an apocalyptic number.

31223103223 is a deficient number, since it is larger than the sum of its proper divisors (3221896793).

31223103223 is a wasteful number, since it uses less digits than its factorization.

31223103223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58579985.

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

Adding to 31223103223 its reverse (32230132213), we get a palindrome (63453235436).

The spelling of 31223103223 in words is "thirty-one billion, two hundred twenty-three million, one hundred three thousand, two hundred twenty-three".