431120653 has 2 divisors, whose sum is σ = 431120654. Its totient is φ = 431120652.

The previous prime is 431120647. The next prime is 431120693. The reversal of 431120653 is 356021134.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 429235524 + 1885129 = 20718^2 + 1373^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431120653 is a prime.

It is equal to p_22904440 and since 431120653 and 22904440 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431120693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215560326 + 215560327.

It is an arithmetic number, because the mean of its divisors is an integer number (215560327).

Almost surely, 2^431120653 is an apocalyptic number.

It is an amenable number.

431120653 is a deficient number, since it is larger than the sum of its proper divisors (1).

431120653 is an equidigital number, since it uses as much as digits as its factorization.

431120653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 431120653 is about 20763.4451139497. The cubic root of 431120653 is about 755.4393612464.

Adding to 431120653 its reverse (356021134), we get a palindrome (787141787).

It can be divided in two parts, 4311 and 20653, that added together give a square (24964 = 158²).

The spelling of 431120653 in words is "four hundred thirty-one million, one hundred twenty thousand, six hundred fifty-three".