431514121 has 2 divisors, whose sum is σ = 431514122. Its totient is φ = 431514120.

The previous prime is 431514107. The next prime is 431514137. The reversal of 431514121 is 121415134.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 428490000 + 3024121 = 20700^2 + 1739^2 .

It is a cyclic number.

It is not a de Polignac number, because 431514121 - 2⁷ = 431513993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 431514092 and 431514101.

It is not a weakly prime, because it can be changed into another prime (431514101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215757060 + 215757061.

It is an arithmetic number, because the mean of its divisors is an integer number (215757061).

Almost surely, 2^431514121 is an apocalyptic number.

It is an amenable number.

431514121 is a deficient number, since it is larger than the sum of its proper divisors (1).

431514121 is an equidigital number, since it uses as much as digits as its factorization.

431514121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 480, while the sum is 22.

The square root of 431514121 is about 20772.9179702804. The cubic root of 431514121 is about 755.6691119603.

Adding to 431514121 its reverse (121415134), we get a palindrome (552929255).

The spelling of 431514121 in words is "four hundred thirty-one million, five hundred fourteen thousand, one hundred twenty-one".