1031404043434 has 4 divisors (see below), whose sum is σ = 1547106065154. Its totient is φ = 515702021716.

The previous prime is 1031404043431. The next prime is 1031404043491. The reversal of 1031404043434 is 4343404041301.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 891787479025 + 139616564409 = 944345^2 + 373653^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1031404043396 and 1031404043405.

It is not an unprimeable number, because it can be changed into a prime (1031404043431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257851010857 + ... + 257851010860.

Almost surely, 2^{1031404043434} is an apocalyptic number.

1031404043434 is a deficient number, since it is larger than the sum of its proper divisors (515702021720).

1031404043434 is an equidigital number, since it uses as much as digits as its factorization.

1031404043434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515702021719.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 1031404043434 its reverse (4343404041301), we get a palindrome (5374808084735).

The spelling of 1031404043434 in words is "one trillion, thirty-one billion, four hundred four million, forty-three thousand, four hundred thirty-four".