1213423601801 has 2 divisors, whose sum is σ = 1213423601802. Its totient is φ = 1213423601800.

The previous prime is 1213423601791. The next prime is 1213423601837. The reversal of 1213423601801 is 1081063243121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1060992702025 + 152430899776 = 1030045^2 + 390424^2 .

It is a cyclic number.

It is not a de Polignac number, because 1213423601801 - 2¹⁴ = 1213423585417 is a prime.

It is not a weakly prime, because it can be changed into another prime (1213423631801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606711800900 + 606711800901.

It is an arithmetic number, because the mean of its divisors is an integer number (606711800901).

Almost surely, 2^{1213423601801} is an apocalyptic number.

It is an amenable number.

1213423601801 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213423601801 is an equidigital number, since it uses as much as digits as its factorization.

1213423601801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 32.

Adding to 1213423601801 its reverse (1081063243121), we get a palindrome (2294486844922).

The spelling of 1213423601801 in words is "one trillion, two hundred thirteen billion, four hundred twenty-three million, six hundred one thousand, eight hundred one".