123612001151011 has 4 divisors (see below), whose sum is σ = 123612136282800. Its totient is φ = 123611866019224.

The previous prime is 123612001151003. The next prime is 123612001151059. The reversal of 123612001151011 is 110151100216321.

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 123612001151011 - 2³ = 123612001151003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123612001151311) 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, 66184351 + ... + 68026408.

It is an arithmetic number, because the mean of its divisors is an integer number (30903034070700).

Almost surely, 2^{123612001151011} is an apocalyptic number.

123612001151011 is a deficient number, since it is larger than the sum of its proper divisors (135131789).

123612001151011 is an equidigital number, since it uses as much as digits as its factorization.

123612001151011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135131788.

The product of its (nonzero) digits is 360, while the sum is 25.

Adding to 123612001151011 its reverse (110151100216321), we get a palindrome (233763101367332).

The spelling of 123612001151011 in words is "one hundred twenty-three trillion, six hundred twelve billion, one million, one hundred fifty-one thousand, eleven".