123101011 has 8 divisors (see below), whose sum is σ = 134881200. Its totient is φ = 111419040.

The previous prime is 123101009. The next prime is 123101047. The reversal of 123101011 is 110101321.

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 123101011 - 2¹ = 123101009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123101411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21916 + ... + 26953.

It is an arithmetic number, because the mean of its divisors is an integer number (16860150).

Almost surely, 2^123101011 is an apocalyptic number.

123101011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

123101011 is a deficient number, since it is larger than the sum of its proper divisors (11780189).

123101011 is a wasteful number, since it uses less digits than its factorization.

123101011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49109.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 123101011 is about 11095.0894994137. The cubic root of 123101011 is about 497.4550834426.

Adding to 123101011 its reverse (110101321), we get a palindrome (233202332).

The spelling of 123101011 in words is "one hundred twenty-three million, one hundred one thousand, eleven".