1223120202023 has 4 divisors (see below), whose sum is σ = 1251564857928. Its totient is φ = 1194675546120.

The previous prime is 1223120201999. The next prime is 1223120202047. The reversal of 1223120202023 is 3202020213221.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (1223120201999) and next prime (1223120202047).

It is a cyclic number.

It is not a de Polignac number, because 1223120202023 - 2⁶ = 1223120201959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1223120201986 and 1223120202004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223120202323) 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, 14222327888 + ... + 14222327973.

It is an arithmetic number, because the mean of its divisors is an integer number (312891214482).

Almost surely, 2^{1223120202023} is an apocalyptic number.

1223120202023 is a deficient number, since it is larger than the sum of its proper divisors (28444655905).

1223120202023 is an equidigital number, since it uses as much as digits as its factorization.

1223120202023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28444655904.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 1223120202023 its reverse (3202020213221), we get a palindrome (4425140415244).

The spelling of 1223120202023 in words is "one trillion, two hundred twenty-three billion, one hundred twenty million, two hundred two thousand, twenty-three".