1213231330037 has 2 divisors, whose sum is σ = 1213231330038. Its totient is φ = 1213231330036.

The previous prime is 1213231330019. The next prime is 1213231330079. The reversal of 1213231330037 is 7300331323121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1205502986116 + 7728343921 = 1097954^2 + 87911^2 .

It is a cyclic number.

It is not a de Polignac number, because 1213231330037 - 2²² = 1213227135733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1213231329991 and 1213231330009.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213231330537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606615665018 + 606615665019.

It is an arithmetic number, because the mean of its divisors is an integer number (606615665019).

Almost surely, 2^{1213231330037} is an apocalyptic number.

It is an amenable number.

1213231330037 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213231330037 is an equidigital number, since it uses as much as digits as its factorization.

1213231330037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 29.

Adding to 1213231330037 its reverse (7300331323121), we get a palindrome (8513562653158).

The spelling of 1213231330037 in words is "one trillion, two hundred thirteen billion, two hundred thirty-one million, three hundred thirty thousand, thirty-seven".