155000343040103 has 4 divisors (see below), whose sum is σ = 169091283316488. Its totient is φ = 140909402763720.

The previous prime is 155000343040063. The next prime is 155000343040117. The reversal of 155000343040103 is 301040343000551.

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 155000343040103 - 2²² = 155000338845799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155000343340103) 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, 7045470138176 + ... + 7045470138197.

It is an arithmetic number, because the mean of its divisors is an integer number (42272820829122).

Almost surely, 2^{155000343040103} is an apocalyptic number.

155000343040103 is a deficient number, since it is larger than the sum of its proper divisors (14090940276385).

155000343040103 is a wasteful number, since it uses less digits than its factorization.

155000343040103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14090940276384.

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 155000343040103 its reverse (301040343000551), we get a palindrome (456040686040654).

The spelling of 155000343040103 in words is "one hundred fifty-five trillion, three hundred forty-three million, forty thousand, one hundred three".