1220231103023 has 4 divisors (see below), whose sum is σ = 1262308037640. Its totient is φ = 1178154168408.

The previous prime is 1220231103019. The next prime is 1220231103029. The reversal of 1220231103023 is 3203011320221.

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 1220231103023 - 2² = 1220231103019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220231102986 and 1220231103004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220231103029) 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, 21038467265 + ... + 21038467322.

It is an arithmetic number, because the mean of its divisors is an integer number (315577009410).

Almost surely, 2^{1220231103023} is an apocalyptic number.

1220231103023 is a deficient number, since it is larger than the sum of its proper divisors (42076934617).

1220231103023 is an equidigital number, since it uses as much as digits as its factorization.

1220231103023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42076934616.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1220231103023 its reverse (3203011320221), we get a palindrome (4423242423244).

The spelling of 1220231103023 in words is "one trillion, two hundred twenty billion, two hundred thirty-one million, one hundred three thousand, twenty-three".