155345050123 has 2 divisors, whose sum is σ = 155345050124. Its totient is φ = 155345050122.

The previous prime is 155345050067. The next prime is 155345050247. The reversal of 155345050123 is 321050543551.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155345050123 is a prime.

It is not a weakly prime, because it can be changed into another prime (155345050423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77672525061 + 77672525062.

It is an arithmetic number, because the mean of its divisors is an integer number (77672525062).

Almost surely, 2^155345050123 is an apocalyptic number.

155345050123 is a deficient number, since it is larger than the sum of its proper divisors (1).

155345050123 is an equidigital number, since it uses as much as digits as its factorization.

155345050123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45000, while the sum is 34.

Adding to 155345050123 its reverse (321050543551), we get a palindrome (476395593674).

The spelling of 155345050123 in words is "one hundred fifty-five billion, three hundred forty-five million, fifty thousand, one hundred twenty-three".