150421454123 has 2 divisors, whose sum is σ = 150421454124. Its totient is φ = 150421454122.

The previous prime is 150421454111. The next prime is 150421454149. The reversal of 150421454123 is 321454124051.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 150421454123 - 2²⁰ = 150420405547 is a prime.

It is a super-2 number, since 2×150421454123² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 150421454123.

It is not a weakly prime, because it can be changed into another prime (150421354123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75210727061 + 75210727062.

It is an arithmetic number, because the mean of its divisors is an integer number (75210727062).

Almost surely, 2^150421454123 is an apocalyptic number.

150421454123 is a deficient number, since it is larger than the sum of its proper divisors (1).

150421454123 is an equidigital number, since it uses as much as digits as its factorization.

150421454123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 150421454123 its reverse (321454124051), we get a palindrome (471875578174).

The spelling of 150421454123 in words is "one hundred fifty billion, four hundred twenty-one million, four hundred fifty-four thousand, one hundred twenty-three".