31234422433 has 2 divisors, whose sum is σ = 31234422434. Its totient is φ = 31234422432.

The previous prime is 31234422389. The next prime is 31234422491. The reversal of 31234422433 is 33422443213.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26744350369 + 4490072064 = 163537^2 + 67008^2 .

It is a cyclic number.

It is not a de Polignac number, because 31234422433 - 2⁹ = 31234421921 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31234422395 and 31234422404.

It is not a weakly prime, because it can be changed into another prime (31234462433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15617211216 + 15617211217.

It is an arithmetic number, because the mean of its divisors is an integer number (15617211217).

Almost surely, 2^31234422433 is an apocalyptic number.

It is an amenable number.

31234422433 is a deficient number, since it is larger than the sum of its proper divisors (1).

31234422433 is an equidigital number, since it uses as much as digits as its factorization.

31234422433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 31.

Adding to 31234422433 its reverse (33422443213), we get a palindrome (64656865646).

The spelling of 31234422433 in words is "thirty-one billion, two hundred thirty-four million, four hundred twenty-two thousand, four hundred thirty-three".