31023201223 has 8 divisors (see below), whose sum is σ = 35456301440. Its totient is φ = 26590404600.

The previous prime is 31023201193. The next prime is 31023201227. The reversal of 31023201223 is 32210232013.

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 31023201223 - 2²¹ = 31021104071 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31023201223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31023201227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219988 + ... + 332326.

It is an arithmetic number, because the mean of its divisors is an integer number (4432037680).

Almost surely, 2^31023201223 is an apocalyptic number.

31023201223 is a deficient number, since it is larger than the sum of its proper divisors (4433100217).

31023201223 is a wasteful number, since it uses less digits than its factorization.

31023201223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151797.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 31023201223 its reverse (32210232013), we get a palindrome (63233433236).

The spelling of 31023201223 in words is "thirty-one billion, twenty-three million, two hundred one thousand, two hundred twenty-three".