120203956423 has 8 divisors (see below), whose sum is σ = 123874063488. Its totient is φ = 116556025824.

The previous prime is 120203956391. The next prime is 120203956463. The reversal of 120203956423 is 324659302021.

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 120203956423 - 2⁵ = 120203956391 is a prime.

It is a super-2 number, since 2×120203956423² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120203956463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5533111 + ... + 5554792.

It is an arithmetic number, because the mean of its divisors is an integer number (15484257936).

Almost surely, 2^120203956423 is an apocalyptic number.

120203956423 is a deficient number, since it is larger than the sum of its proper divisors (3670107065).

120203956423 is a wasteful number, since it uses less digits than its factorization.

120203956423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11088233.

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 120203956423 in words is "one hundred twenty billion, two hundred three million, nine hundred fifty-six thousand, four hundred twenty-three".