402430024121 has 2 divisors, whose sum is σ = 402430024122. Its totient is φ = 402430024120.

The previous prime is 402430024091. The next prime is 402430024189. The reversal of 402430024121 is 121420034204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 384816752896 + 17613271225 = 620336^2 + 132715^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402430024121 is a prime.

It is not a weakly prime, because it can be changed into another prime (402430029121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201215012060 + 201215012061.

It is an arithmetic number, because the mean of its divisors is an integer number (201215012061).

Almost surely, 2^402430024121 is an apocalyptic number.

It is an amenable number.

402430024121 is a deficient number, since it is larger than the sum of its proper divisors (1).

402430024121 is an equidigital number, since it uses as much as digits as its factorization.

402430024121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 402430024121 its reverse (121420034204), we get a palindrome (523850058325).

The spelling of 402430024121 in words is "four hundred two billion, four hundred thirty million, twenty-four thousand, one hundred twenty-one".