120202323123 has 4 divisors (see below), whose sum is σ = 160269764168. Its totient is φ = 80134882080.

The previous prime is 120202323061. The next prime is 120202323179. The reversal of 120202323123 is 321323202021.

It is a happy number.

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

It is not a de Polignac number, because 120202323123 - 2¹⁶ = 120202257587 is a prime.

It is a super-2 number, since 2×120202323123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120202323123.

It is not an unprimeable number, because it can be changed into a prime (120202323193) 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, 20033720518 + ... + 20033720523.

It is an arithmetic number, because the mean of its divisors is an integer number (40067441042).

Almost surely, 2^120202323123 is an apocalyptic number.

120202323123 is a deficient number, since it is larger than the sum of its proper divisors (40067441045).

120202323123 is an equidigital number, since it uses as much as digits as its factorization.

120202323123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40067441044.

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

Adding to 120202323123 its reverse (321323202021), we get a palindrome (441525525144).

The spelling of 120202323123 in words is "one hundred twenty billion, two hundred two million, three hundred twenty-three thousand, one hundred twenty-three".