123552011 has 6 divisors (see below), whose sum is σ = 135805236. Its totient is φ = 112319900.

The previous prime is 123552007. The next prime is 123552031. The reversal of 123552011 is 110255321.

It is a happy number.

It is not a de Polignac number, because 123552011 - 2² = 123552007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123552001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 510425 + ... + 510666.

It is an arithmetic number, because the mean of its divisors is an integer number (22634206).

Almost surely, 2^123552011 is an apocalyptic number.

123552011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

123552011 is a deficient number, since it is larger than the sum of its proper divisors (12253225).

123552011 is a wasteful number, since it uses less digits than its factorization.

123552011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021113 (or 1021102 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 123552011 is about 11115.3952246423. The cubic root of 123552011 is about 498.0618448164.

The spelling of 123552011 in words is "one hundred twenty-three million, five hundred fifty-two thousand, eleven".