150142341543421 has 2 divisors, whose sum is σ = 150142341543422. Its totient is φ = 150142341543420.

The previous prime is 150142341543409. The next prime is 150142341543431. The reversal of 150142341543421 is 124345143241051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 146784395242521 + 3357946300900 = 12115461^2 + 1832470^2 .

It is a cyclic number.

It is not a de Polignac number, because 150142341543421 - 2³⁹ = 149592585729533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (150142341543431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75071170771710 + 75071170771711.

It is an arithmetic number, because the mean of its divisors is an integer number (75071170771711).

Almost surely, 2^{150142341543421} is an apocalyptic number.

It is an amenable number.

150142341543421 is a deficient number, since it is larger than the sum of its proper divisors (1).

150142341543421 is an equidigital number, since it uses as much as digits as its factorization.

150142341543421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 230400, while the sum is 40.

Adding to 150142341543421 its reverse (124345143241051), we get a palindrome (274487484784472).

The spelling of 150142341543421 in words is "one hundred fifty trillion, one hundred forty-two billion, three hundred forty-one million, five hundred forty-three thousand, four hundred twenty-one".