120423311803 has 2 divisors, whose sum is σ = 120423311804. Its totient is φ = 120423311802.

The previous prime is 120423311761. The next prime is 120423311809. The reversal of 120423311803 is 308113324021.

It is a strong prime.

It is an emirp because it is prime and its reverse (308113324021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120423311803 is a prime.

It is a super-2 number, since 2×120423311803² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (120423311809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60211655901 + 60211655902.

It is an arithmetic number, because the mean of its divisors is an integer number (60211655902).

Almost surely, 2^120423311803 is an apocalyptic number.

120423311803 is a deficient number, since it is larger than the sum of its proper divisors (1).

120423311803 is an equidigital number, since it uses as much as digits as its factorization.

120423311803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 120423311803 its reverse (308113324021), we get a palindrome (428536635824).

The spelling of 120423311803 in words is "one hundred twenty billion, four hundred twenty-three million, three hundred eleven thousand, eight hundred three".