123011120211 has 8 divisors (see below), whose sum is σ = 187445516544. Its totient is φ = 70292068680.

The previous prime is 123011120191. The next prime is 123011120279. The reversal of 123011120211 is 112021110321.

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

It is not a de Polignac number, because 123011120211 - 2⁶ = 123011120147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123011120311) 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, 2928836175 + ... + 2928836216.

It is an arithmetic number, because the mean of its divisors is an integer number (23430689568).

Almost surely, 2^123011120211 is an apocalyptic number.

123011120211 is a deficient number, since it is larger than the sum of its proper divisors (64434396333).

123011120211 is an equidigital number, since it uses as much as digits as its factorization.

123011120211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5857672401.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 123011120211 its reverse (112021110321), we get a palindrome (235032230532).

The spelling of 123011120211 in words is "one hundred twenty-three billion, eleven million, one hundred twenty thousand, two hundred eleven".