31004040216433 has 2 divisors, whose sum is σ = 31004040216434. Its totient is φ = 31004040216432.

The previous prime is 31004040216407. The next prime is 31004040216437. The reversal of 31004040216433 is 33461204040013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29857667423089 + 1146372793344 = 5464217^2 + 1070688^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31004040216433 is a prime.

It is a super-2 number, since 2×31004040216433² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31004040216395 and 31004040216404.

It is not a weakly prime, because it can be changed into another prime (31004040216437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15502020108216 + 15502020108217.

It is an arithmetic number, because the mean of its divisors is an integer number (15502020108217).

Almost surely, 2^{31004040216433} is an apocalyptic number.

It is an amenable number.

31004040216433 is a deficient number, since it is larger than the sum of its proper divisors (1).

31004040216433 is an equidigital number, since it uses as much as digits as its factorization.

31004040216433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 31004040216433 its reverse (33461204040013), we get a palindrome (64465244256446).

The spelling of 31004040216433 in words is "thirty-one trillion, four billion, forty million, two hundred sixteen thousand, four hundred thirty-three".