1121235315461 has 2 divisors, whose sum is σ = 1121235315462. Its totient is φ = 1121235315460.

The previous prime is 1121235315413. The next prime is 1121235315493. The reversal of 1121235315461 is 1645135321211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1119535402561 + 1699912900 = 1058081^2 + 41230^2 .

It is an emirp because it is prime and its reverse (1645135321211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1121235315461 - 2²⁶ = 1121168206597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121235315961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560617657730 + 560617657731.

It is an arithmetic number, because the mean of its divisors is an integer number (560617657731).

Almost surely, 2^{1121235315461} is an apocalyptic number.

It is an amenable number.

1121235315461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121235315461 is an equidigital number, since it uses as much as digits as its factorization.

1121235315461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 35.

The spelling of 1121235315461 in words is "one trillion, one hundred twenty-one billion, two hundred thirty-five million, three hundred fifteen thousand, four hundred sixty-one".