1215043300401 has 12 divisors (see below), whose sum is σ = 1884556955952. Its totient is φ = 694310457288.

The previous prime is 1215043300399. The next prime is 1215043300433. The reversal of 1215043300401 is 1040033405121.

It is a happy number.

It is not a de Polignac number, because 1215043300401 - 2¹ = 1215043300399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1215043300481) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4132800195 + ... + 4132800488.

It is an arithmetic number, because the mean of its divisors is an integer number (157046412996).

Almost surely, 2^{1215043300401} is an apocalyptic number.

It is an amenable number.

1215043300401 is a deficient number, since it is larger than the sum of its proper divisors (669513655551).

1215043300401 is an equidigital number, since it uses as much as digits as its factorization.

1215043300401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8265600700 (or 8265600693 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 1215043300401 its reverse (1040033405121), we get a palindrome (2255076705522).

The spelling of 1215043300401 in words is "one trillion, two hundred fifteen billion, forty-three million, three hundred thousand, four hundred one".