123021320223 has 8 divisors (see below), whose sum is σ = 166004673408. Its totient is φ = 81026090264.

The previous prime is 123021320167. The next prime is 123021320237. The reversal of 123021320223 is 322023120321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123021320223 - 2¹⁰ = 123021319199 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123021320223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123021320243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247030515 + ... + 247031012.

It is an arithmetic number, because the mean of its divisors is an integer number (20750584176).

Almost surely, 2^123021320223 is an apocalyptic number.

123021320223 is a deficient number, since it is larger than the sum of its proper divisors (42983353185).

123021320223 is an equidigital number, since it uses as much as digits as its factorization.

123021320223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494061613.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 123021320223 its reverse (322023120321), we get a palindrome (445044440544).

The spelling of 123021320223 in words is "one hundred twenty-three billion, twenty-one million, three hundred twenty thousand, two hundred twenty-three".