2011030120123 has 8 divisors (see below), whose sum is σ = 2132407535760. Its totient is φ = 1889995096320.

The previous prime is 2011030120097. The next prime is 2011030120171. The reversal of 2011030120123 is 3210210301102.

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 2011030120123 - 2⁵ = 2011030120091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2011030120097 and 2011030120106.

It is not an unprimeable number, because it can be changed into a prime (2011030120223) 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, 85585858 + ... + 85609351.

It is an arithmetic number, because the mean of its divisors is an integer number (266550941970).

Almost surely, 2^{2011030120123} is an apocalyptic number.

2011030120123 is a deficient number, since it is larger than the sum of its proper divisors (121377415637).

2011030120123 is a wasteful number, since it uses less digits than its factorization.

2011030120123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171195917.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 2011030120123 its reverse (3210210301102), we get a palindrome (5221240421225).

The spelling of 2011030120123 in words is "two trillion, eleven billion, thirty million, one hundred twenty thousand, one hundred twenty-three".