2011313031123 has 8 divisors (see below), whose sum is σ = 2925546227136. Its totient is φ = 1218977594600.

The previous prime is 2011313031073. The next prime is 2011313031149. The reversal of 2011313031123 is 3211303131102.

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 2011313031123 - 2³⁷ = 1873874077651 is a prime.

It is a super-2 number, since 2×2011313031123² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2011313031123.

It is not an unprimeable number, because it can be changed into a prime (2011313031163) 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, 30474439833 + ... + 30474439898.

It is an arithmetic number, because the mean of its divisors is an integer number (365693278392).

Almost surely, 2^{2011313031123} is an apocalyptic number.

2011313031123 is a deficient number, since it is larger than the sum of its proper divisors (914233196013).

2011313031123 is a wasteful number, since it uses less digits than its factorization.

2011313031123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60948879745.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 2011313031123 its reverse (3211303131102), we get a palindrome (5222616162225).

The spelling of 2011313031123 in words is "two trillion, eleven billion, three hundred thirteen million, thirty-one thousand, one hundred twenty-three".