523120001 has 2 divisors, whose sum is σ = 523120002. Its totient is φ = 523120000.

The previous prime is 523119991. The next prime is 523120007. The reversal of 523120001 is 100021325.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 286421776 + 236698225 = 16924^2 + 15385^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-523120001 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (523120007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261560000 + 261560001.

It is an arithmetic number, because the mean of its divisors is an integer number (261560001).

Almost surely, 2^523120001 is an apocalyptic number.

It is an amenable number.

523120001 is a deficient number, since it is larger than the sum of its proper divisors (1).

523120001 is an equidigital number, since it uses as much as digits as its factorization.

523120001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 523120001 is about 22871.8167402592. The cubic root of 523120001 is about 805.7502366333.

Adding to 523120001 its reverse (100021325), we get a palindrome (623141326).

The spelling of 523120001 in words is "five hundred twenty-three million, one hundred twenty thousand, one".