1121312217023 has 2 divisors, whose sum is σ = 1121312217024. Its totient is φ = 1121312217022.

The previous prime is 1121312216963. The next prime is 1121312217079. The reversal of 1121312217023 is 3207122131211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1121312217023 - 2²² = 1121308022719 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1121312216983 and 1121312217001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121312247023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560656108511 + 560656108512.

It is an arithmetic number, because the mean of its divisors is an integer number (560656108512).

Almost surely, 2^{1121312217023} is an apocalyptic number.

1121312217023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121312217023 is an equidigital number, since it uses as much as digits as its factorization.

1121312217023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 26.

Adding to 1121312217023 its reverse (3207122131211), we get a palindrome (4328434348234).

The spelling of 1121312217023 in words is "one trillion, one hundred twenty-one billion, three hundred twelve million, two hundred seventeen thousand, twenty-three".