151240015000123 has 4 divisors (see below), whose sum is σ = 172845731428720. Its totient is φ = 129634298571528.

The previous prime is 151240015000049. The next prime is 151240015000133. The reversal of 151240015000123 is 321000510042151.

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 151240015000123 - 2³⁷ = 151102576046651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (151240015000133) 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, 10802858214288 + ... + 10802858214301.

It is an arithmetic number, because the mean of its divisors is an integer number (43211432857180).

Almost surely, 2^{151240015000123} is an apocalyptic number.

151240015000123 is a deficient number, since it is larger than the sum of its proper divisors (21605716428597).

151240015000123 is an equidigital number, since it uses as much as digits as its factorization.

151240015000123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21605716428596.

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 151240015000123 its reverse (321000510042151), we get a palindrome (472240525042274).

The spelling of 151240015000123 in words is "one hundred fifty-one trillion, two hundred forty billion, fifteen million, one hundred twenty-three", and thus it is an aban number.