155051103331423 has 16 divisors (see below), whose sum is σ = 167483216574016. Its totient is φ = 142691588686080.

The previous prime is 155051103331379. The next prime is 155051103331441. The reversal of 155051103331423 is 324133301150551.

It is a cyclic number.

It is not a de Polignac number, because 155051103331423 - 2⁹ = 155051103330911 is a prime.

It is a super-2 number, since 2×155051103331423² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155051103361423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 735390 + ... + 17625067.

It is an arithmetic number, because the mean of its divisors is an integer number (10467701035876).

Almost surely, 2^{155051103331423} is an apocalyptic number.

155051103331423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

155051103331423 is a deficient number, since it is larger than the sum of its proper divisors (12432113242593).

155051103331423 is a wasteful number, since it uses less digits than its factorization.

155051103331423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18362434.

The product of its (nonzero) digits is 81000, while the sum is 37.

Adding to 155051103331423 its reverse (324133301150551), we get a palindrome (479184404481974).

The spelling of 155051103331423 in words is "one hundred fifty-five trillion, fifty-one billion, one hundred three million, three hundred thirty-one thousand, four hundred twenty-three".