155304123315 has 32 divisors (see below), whose sum is σ = 271144993536. Its totient is φ = 75279884160.

The previous prime is 155304123311. The next prime is 155304123319. The reversal of 155304123315 is 513321403551.

155304123315 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (155304123311) and next prime (155304123319).

It is not a de Polignac number, because 155304123315 - 2² = 155304123311 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (155304123311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 544872 + ... + 779418.

It is an arithmetic number, because the mean of its divisors is an integer number (8473281048).

Almost surely, 2^155304123315 is an apocalyptic number.

155304123315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

155304123315 is a deficient number, since it is larger than the sum of its proper divisors (115840870221).

155304123315 is a wasteful number, since it uses less digits than its factorization.

155304123315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238579.

The product of its (nonzero) digits is 27000, while the sum is 33.

Adding to 155304123315 its reverse (513321403551), we get a palindrome (668625526866).

The spelling of 155304123315 in words is "one hundred fifty-five billion, three hundred four million, one hundred twenty-three thousand, three hundred fifteen".