1220023320203 has 4 divisors (see below), whose sum is σ = 1291789397880. Its totient is φ = 1148257242528.

The previous prime is 1220023320199. The next prime is 1220023320211. The reversal of 1220023320203 is 3020233200221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1220023320203 - 2² = 1220023320199 is a prime.

It is a super-2 number, since 2×1220023320203² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1220023320233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35883038813 + ... + 35883038846.

It is an arithmetic number, because the mean of its divisors is an integer number (322947349470).

Almost surely, 2^{1220023320203} is an apocalyptic number.

1220023320203 is a deficient number, since it is larger than the sum of its proper divisors (71766077677).

1220023320203 is an equidigital number, since it uses as much as digits as its factorization.

1220023320203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71766077676.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 1220023320203 its reverse (3020233200221), we get a palindrome (4240256520424).

The spelling of 1220023320203 in words is "one trillion, two hundred twenty billion, twenty-three million, three hundred twenty thousand, two hundred three".