1033431122421 has 6 divisors (see below), whose sum is σ = 1492733843510. Its totient is φ = 688954081608.

The previous prime is 1033431122401. The next prime is 1033431122441. The reversal of 1033431122421 is 1242211343301.

1033431122421 is a `hidden beast` number, since 1 + 0 + 3 + 3 + 431 + 1 + 224 + 2 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (1033431122401) and next prime (1033431122441).

It can be written as a sum of positive squares in only one way, i.e., 952743879396 + 80687243025 = 976086^2 + 284055^2 .

It is not a de Polignac number, because 1033431122421 - 2¹³ = 1033431114229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1033431122401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57412840126 + ... + 57412840143.

Almost surely, 2^{1033431122421} is an apocalyptic number.

It is an amenable number.

1033431122421 is a deficient number, since it is larger than the sum of its proper divisors (459302721089).

1033431122421 is a wasteful number, since it uses less digits than its factorization.

1033431122421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114825680275 (or 114825680272 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 1033431122421 its reverse (1242211343301), we get a palindrome (2275642465722).

The spelling of 1033431122421 in words is "one trillion, thirty-three billion, four hundred thirty-one million, one hundred twenty-two thousand, four hundred twenty-one".