1550134340123 has 2 divisors, whose sum is σ = 1550134340124. Its totient is φ = 1550134340122.

The previous prime is 1550134340101. The next prime is 1550134340137. The reversal of 1550134340123 is 3210434310551.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1550134340123 - 2¹² = 1550134336027 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1550134340123.

It is not a weakly prime, because it can be changed into another prime (1550134340723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 775067170061 + 775067170062.

It is an arithmetic number, because the mean of its divisors is an integer number (775067170062).

Almost surely, 2^{1550134340123} is an apocalyptic number.

1550134340123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1550134340123 is an equidigital number, since it uses as much as digits as its factorization.

1550134340123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 1550134340123 its reverse (3210434310551), we get a palindrome (4760568650674).

The spelling of 1550134340123 in words is "one trillion, five hundred fifty billion, one hundred thirty-four million, three hundred forty thousand, one hundred twenty-three".