123101203111 has 8 divisors (see below), whose sum is σ = 126034747520. Its totient is φ = 120170873592.

The previous prime is 123101203067. The next prime is 123101203153. The reversal of 123101203111 is 111302101321.

It is a happy number.

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 123101203111 - 2¹⁵ = 123101170343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123101303111) 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, 726141 + ... + 879478.

It is an arithmetic number, because the mean of its divisors is an integer number (15754343440).

Almost surely, 2^123101203111 is an apocalyptic number.

123101203111 is a deficient number, since it is larger than the sum of its proper divisors (2933544409).

123101203111 is a wasteful number, since it uses less digits than its factorization.

123101203111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1607445.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 123101203111 its reverse (111302101321), we get a palindrome (234403304432).

The spelling of 123101203111 in words is "one hundred twenty-three billion, one hundred one million, two hundred three thousand, one hundred eleven".