123452512201 has 6 divisors (see below), whose sum is σ = 124686926606. Its totient is φ = 122230200000.

The previous prime is 123452512123. The next prime is 123452512223. The reversal of 123452512201 is 102215254321.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 106717208976 + 16735303225 = 326676^2 + 129365^2 .

It is not a de Polignac number, because 123452512201 - 2¹⁹ = 123451987913 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123452512201.

It is not an unprimeable number, because it can be changed into a prime (123452512801) 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, 6040800 + ... + 6061201.

Almost surely, 2^123452512201 is an apocalyptic number.

It is an amenable number.

123452512201 is a deficient number, since it is larger than the sum of its proper divisors (1234414405).

123452512201 is an equidigital number, since it uses as much as digits as its factorization.

123452512201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12102203 (or 12102102 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 123452512201 its reverse (102215254321), we get a palindrome (225667766522).

The spelling of 123452512201 in words is "one hundred twenty-three billion, four hundred fifty-two million, five hundred twelve thousand, two hundred one".