1220023233123 has 4 divisors (see below), whose sum is σ = 1626697644168. Its totient is φ = 813348822080.

The previous prime is 1220023233089. The next prime is 1220023233127. The reversal of 1220023233123 is 3213323200221.

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 1220023233123 - 2⁹ = 1220023232611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1220023233093 and 1220023233102.

It is not an unprimeable number, because it can be changed into a prime (1220023233127) 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, 203337205518 + ... + 203337205523.

It is an arithmetic number, because the mean of its divisors is an integer number (406674411042).

Almost surely, 2^{1220023233123} is an apocalyptic number.

1220023233123 is a deficient number, since it is larger than the sum of its proper divisors (406674411045).

1220023233123 is an equidigital number, since it uses as much as digits as its factorization.

1220023233123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406674411044.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 1220023233123 its reverse (3213323200221), we get a palindrome (4433346433344).

The spelling of 1220023233123 in words is "one trillion, two hundred twenty billion, twenty-three million, two hundred thirty-three thousand, one hundred twenty-three".