31440230033 has 2 divisors, whose sum is σ = 31440230034. Its totient is φ = 31440230032.

The previous prime is 31440229999. The next prime is 31440230047. The reversal of 31440230033 is 33003204413.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23118594304 + 8321635729 = 152048^2 + 91223^2 .

It is a cyclic number.

It is not a de Polignac number, because 31440230033 - 2¹² = 31440225937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31440229990 and 31440230008.

It is not a weakly prime, because it can be changed into another prime (31440230233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15720115016 + 15720115017.

It is an arithmetic number, because the mean of its divisors is an integer number (15720115017).

Almost surely, 2^31440230033 is an apocalyptic number.

It is an amenable number.

31440230033 is a deficient number, since it is larger than the sum of its proper divisors (1).

31440230033 is an equidigital number, since it uses as much as digits as its factorization.

31440230033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 31440230033 its reverse (33003204413), we get a palindrome (64443434446).

The spelling of 31440230033 in words is "thirty-one billion, four hundred forty million, two hundred thirty thousand, thirty-three".