1213301100001 has 2 divisors, whose sum is σ = 1213301100002. Its totient is φ = 1213301100000.

The previous prime is 1213301099999. The next prime is 1213301100017. The reversal of 1213301100001 is 1000011033121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1126620907776 + 86680192225 = 1061424^2 + 294415^2 .

It is a cyclic number.

It is not a de Polignac number, because 1213301100001 - 2¹ = 1213301099999 is a prime.

Together with 1213301099999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1213301100041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606650550000 + 606650550001.

It is an arithmetic number, because the mean of its divisors is an integer number (606650550001).

Almost surely, 2^{1213301100001} is an apocalyptic number.

It is an amenable number.

1213301100001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213301100001 is an equidigital number, since it uses as much as digits as its factorization.

1213301100001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 1213301100001 its reverse (1000011033121), we get a palindrome (2213312133122).

The spelling of 1213301100001 in words is "one trillion, two hundred thirteen billion, three hundred one million, one hundred thousand, one".