1213201002373 has 2 divisors, whose sum is σ = 1213201002374. Its totient is φ = 1213201002372.

The previous prime is 1213201002319. The next prime is 1213201002383. The reversal of 1213201002373 is 3732001023121.

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., 919715524324 + 293485478049 = 959018^2 + 541743^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1213201002373 is a prime.

It is a super-2 number, since 2×1213201002373² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213201002383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606600501186 + 606600501187.

It is an arithmetic number, because the mean of its divisors is an integer number (606600501187).

Almost surely, 2^{1213201002373} is an apocalyptic number.

It is an amenable number.

1213201002373 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213201002373 is an equidigital number, since it uses as much as digits as its factorization.

1213201002373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 25.

Adding to 1213201002373 its reverse (3732001023121), we get a palindrome (4945202025494).

The spelling of 1213201002373 in words is "one trillion, two hundred thirteen billion, two hundred one million, two thousand, three hundred seventy-three".