123342001011 has 24 divisors (see below), whose sum is σ = 178776814944. Its totient is φ = 81943868160.

The previous prime is 123342001009. The next prime is 123342001039. The reversal of 123342001011 is 110100243321.

123342001011 is a `hidden beast` number, since 1 + 233 + 420 + 0 + 1 + 0 + 11 = 666.

It is not a de Polignac number, because 123342001011 - 2¹ = 123342001009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123342001061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7000465 + ... + 7018061.

It is an arithmetic number, because the mean of its divisors is an integer number (7449033956).

Almost surely, 2^123342001011 is an apocalyptic number.

123342001011 is a deficient number, since it is larger than the sum of its proper divisors (55434813933).

123342001011 is a wasteful number, since it uses less digits than its factorization.

123342001011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20251 (or 20248 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 123342001011 its reverse (110100243321), we get a palindrome (233442244332).

The spelling of 123342001011 in words is "one hundred twenty-three billion, three hundred forty-two million, one thousand, eleven".