1213763286941 has 2 divisors, whose sum is σ = 1213763286942. Its totient is φ = 1213763286940.

The previous prime is 1213763286899. The next prime is 1213763286971. The reversal of 1213763286941 is 1496823673121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 934984566916 + 278778720025 = 966946^2 + 527995^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1213763286941 is a prime.

It is a super-2 number, since 2×1213763286941² (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 (1213763286971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606881643470 + 606881643471.

It is an arithmetic number, because the mean of its divisors is an integer number (606881643471).

Almost surely, 2^{1213763286941} is an apocalyptic number.

It is an amenable number.

1213763286941 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213763286941 is an equidigital number, since it uses as much as digits as its factorization.

1213763286941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2612736, while the sum is 53.

The spelling of 1213763286941 in words is "one trillion, two hundred thirteen billion, seven hundred sixty-three million, two hundred eighty-six thousand, nine hundred forty-one".