150000123405203 has 4 divisors (see below), whose sum is σ = 150024758018520. Its totient is φ = 149975488791888.

The previous prime is 150000123405091. The next prime is 150000123405211. The reversal of 150000123405203 is 302504321000051.

It is a happy number.

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 150000123405203 - 2²⁰ = 150000122356627 is a prime.

It is a super-2 number, since 2×150000123405203² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150002123405203) 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, 12317297525 + ... + 12317309702.

It is an arithmetic number, because the mean of its divisors is an integer number (37506189504630).

Almost surely, 2^{150000123405203} is an apocalyptic number.

150000123405203 is a deficient number, since it is larger than the sum of its proper divisors (24634613317).

150000123405203 is an equidigital number, since it uses as much as digits as its factorization.

150000123405203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24634613316.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 150000123405203 its reverse (302504321000051), we get a palindrome (452504444405254).

The spelling of 150000123405203 in words is "one hundred fifty trillion, one hundred twenty-three million, four hundred five thousand, two hundred three".