155412323111 has 8 divisors (see below), whose sum is σ = 155618467344. Its totient is φ = 155206281600.

The previous prime is 155412323063. The next prime is 155412323117. The reversal of 155412323111 is 111323214551.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 155412323111 - 2⁶ = 155412323047 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 (155412323117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3279536 + ... + 3326586.

It is an arithmetic number, because the mean of its divisors is an integer number (19452308418).

Almost surely, 2^155412323111 is an apocalyptic number.

155412323111 is a deficient number, since it is larger than the sum of its proper divisors (206144233).

155412323111 is an equidigital number, since it uses as much as digits as its factorization.

155412323111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51361.

The product of its digits is 3600, while the sum is 29.

Adding to 155412323111 its reverse (111323214551), we get a palindrome (266735537662).

The spelling of 155412323111 in words is "one hundred fifty-five billion, four hundred twelve million, three hundred twenty-three thousand, one hundred eleven".