31223311401 has 8 divisors (see below), whose sum is σ = 43822191520. Its totient is φ = 19719986112.

The previous prime is 31223311387. The next prime is 31223311433. The reversal of 31223311401 is 10411332213.

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

It is not a de Polignac number, because 31223311401 - 2⁹ = 31223310889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31223311451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273888640 + ... + 273888753.

It is an arithmetic number, because the mean of its divisors is an integer number (5477773940).

Almost surely, 2^31223311401 is an apocalyptic number.

It is an amenable number.

31223311401 is a deficient number, since it is larger than the sum of its proper divisors (12598880119).

31223311401 is a wasteful number, since it uses less digits than its factorization.

31223311401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547777415.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 31223311401 its reverse (10411332213), we get a palindrome (41634643614).

The spelling of 31223311401 in words is "thirty-one billion, two hundred twenty-three million, three hundred eleven thousand, four hundred one".