1213434100049 has 2 divisors, whose sum is σ = 1213434100050. Its totient is φ = 1213434100048.

The previous prime is 1213434100031. The next prime is 1213434100171. The reversal of 1213434100049 is 9400014343121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1201967973649 + 11466126400 = 1096343^2 + 107080^2 .

It is a cyclic number.

It is not a de Polignac number, because 1213434100049 - 2²⁰ = 1213433051473 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1213434099988 and 1213434100024.

It is not a weakly prime, because it can be changed into another prime (1213434108049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606717050024 + 606717050025.

It is an arithmetic number, because the mean of its divisors is an integer number (606717050025).

Almost surely, 2^{1213434100049} is an apocalyptic number.

It is an amenable number.

1213434100049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213434100049 is an equidigital number, since it uses as much as digits as its factorization.

1213434100049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 1213434100049 in words is "one trillion, two hundred thirteen billion, four hundred thirty-four million, one hundred thousand, forty-nine".