1220656610023 has 2 divisors, whose sum is σ = 1220656610024. Its totient is φ = 1220656610022.

The previous prime is 1220656610009. The next prime is 1220656610093. The reversal of 1220656610023 is 3200166560221.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220656610023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220656610093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610328305011 + 610328305012.

It is an arithmetic number, because the mean of its divisors is an integer number (610328305012).

Almost surely, 2^{1220656610023} is an apocalyptic number.

1220656610023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220656610023 is an equidigital number, since it uses as much as digits as its factorization.

1220656610023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 1220656610023 in words is "one trillion, two hundred twenty billion, six hundred fifty-six million, six hundred ten thousand, twenty-three".