31421233130233 has 8 divisors (see below), whose sum is σ = 31442516724168. Its totient is φ = 31399951774464.

The previous prime is 31421233130219. The next prime is 31421233130291. The reversal of 31421233130233 is 33203133212413.

It can be written as a sum of positive squares in 4 ways, for example, as 3451223916009 + 27970009214224 = 1857747^2 + 5288668^2 .

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 31421233130233 - 2²¹ = 31421231033081 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31421233130195 and 31421233130204.

It is not an unprimeable number, because it can be changed into a prime (31421233130333) 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, 28021191 + ... + 29120947.

It is an arithmetic number, because the mean of its divisors is an integer number (3930314590521).

Almost surely, 2^{31421233130233} is an apocalyptic number.

It is an amenable number.

31421233130233 is a deficient number, since it is larger than the sum of its proper divisors (21283593935).

31421233130233 is a wasteful number, since it uses less digits than its factorization.

31421233130233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119083.

The product of its (nonzero) digits is 23328, while the sum is 31.

Adding to 31421233130233 its reverse (33203133212413), we get a palindrome (64624366342646).

The spelling of 31421233130233 in words is "thirty-one trillion, four hundred twenty-one billion, two hundred thirty-three million, one hundred thirty thousand, two hundred thirty-three".