31424401033 has 2 divisors, whose sum is σ = 31424401034. Its totient is φ = 31424401032.

The previous prime is 31424400977. The next prime is 31424401039. The reversal of 31424401033 is 33010442413.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31105671424 + 318729609 = 176368^2 + 17853^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31424401033 is a prime.

It is a super-2 number, since 2×31424401033² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31424400989 and 31424401007.

It is not a weakly prime, because it can be changed into another prime (31424401039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15712200516 + 15712200517.

It is an arithmetic number, because the mean of its divisors is an integer number (15712200517).

Almost surely, 2^31424401033 is an apocalyptic number.

It is an amenable number.

31424401033 is a deficient number, since it is larger than the sum of its proper divisors (1).

31424401033 is an equidigital number, since it uses as much as digits as its factorization.

31424401033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 31424401033 its reverse (33010442413), we get a palindrome (64434843446).

The spelling of 31424401033 in words is "thirty-one billion, four hundred twenty-four million, four hundred one thousand, thirty-three".