1302211870961 has 2 divisors, whose sum is σ = 1302211870962. Its totient is φ = 1302211870960.

The previous prime is 1302211870943. The next prime is 1302211870963. The reversal of 1302211870961 is 1690781122031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1242422329600 + 59789541361 = 1114640^2 + 244519^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1302211870961 is a prime.

Together with 1302211870963, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1302211870963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651105935480 + 651105935481.

It is an arithmetic number, because the mean of its divisors is an integer number (651105935481).

Almost surely, 2^{1302211870961} is an apocalyptic number.

It is an amenable number.

1302211870961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1302211870961 is an equidigital number, since it uses as much as digits as its factorization.

1302211870961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 41.

Adding to 1302211870961 its reverse (1690781122031), we get a palindrome (2992992992992).

The spelling of 1302211870961 in words is "one trillion, three hundred two billion, two hundred eleven million, eight hundred seventy thousand, nine hundred sixty-one".