1213032132121 has 2 divisors, whose sum is σ = 1213032132122. Its totient is φ = 1213032132120.

The previous prime is 1213032132041. The next prime is 1213032132127. The reversal of 1213032132121 is 1212312303121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 636108334096 + 576923798025 = 797564^2 + 759555^2 .

It is a cyclic number.

It is not a de Polignac number, because 1213032132121 - 2³³ = 1204442197529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1213032132092 and 1213032132101.

It is not a weakly prime, because it can be changed into another prime (1213032132127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606516066060 + 606516066061.

It is an arithmetic number, because the mean of its divisors is an integer number (606516066061).

Almost surely, 2^{1213032132121} is an apocalyptic number.

It is an amenable number.

1213032132121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213032132121 is an equidigital number, since it uses as much as digits as its factorization.

1213032132121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1213032132121 its reverse (1212312303121), we get a palindrome (2425344435242).

The spelling of 1213032132121 in words is "one trillion, two hundred thirteen billion, thirty-two million, one hundred thirty-two thousand, one hundred twenty-one".