123003115311 has 8 divisors (see below), whose sum is σ = 164005860784. Its totient is φ = 82001223360.

The previous prime is 123003115267. The next prime is 123003115321. The reversal of 123003115311 is 113511300321.

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

It is not a de Polignac number, because 123003115311 - 2⁶ = 123003115247 is a prime.

It is a super-2 number, since 2×123003115311² (a number of 23 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 (123003115321) 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, 297891 + ... + 578571.

It is an arithmetic number, because the mean of its divisors is an integer number (20500732598).

Almost surely, 2^123003115311 is an apocalyptic number.

123003115311 is a deficient number, since it is larger than the sum of its proper divisors (41002745473).

123003115311 is a wasteful number, since it uses less digits than its factorization.

123003115311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426761.

The product of its (nonzero) digits is 270, while the sum is 21.

Adding to 123003115311 its reverse (113511300321), we get a palindrome (236514415632).

The spelling of 123003115311 in words is "one hundred twenty-three billion, three million, one hundred fifteen thousand, three hundred eleven".