31322221123 has 8 divisors (see below), whose sum is σ = 32686680096. Its totient is φ = 29957980800.

The previous prime is 31322221109. The next prime is 31322221127. The reversal of 31322221123 is 32112222313.

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 31322221123 - 2¹³ = 31322212931 is a prime.

It is a super-2 number, since 2×31322221123² (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 = 31322221094 and 31322221103.

It is not an unprimeable number, because it can be changed into a prime (31322221127) 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, 282363 + ... + 377323.

It is an arithmetic number, because the mean of its divisors is an integer number (4085835012).

Almost surely, 2^31322221123 is an apocalyptic number.

31322221123 is a deficient number, since it is larger than the sum of its proper divisors (1364458973).

31322221123 is a wasteful number, since it uses less digits than its factorization.

31322221123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109325.

The product of its digits is 864, while the sum is 22.

Adding to 31322221123 its reverse (32112222313), we get a palindrome (63434443436).

The spelling of 31322221123 in words is "thirty-one billion, three hundred twenty-two million, two hundred twenty-one thousand, one hundred twenty-three".