30311011011123 has 20 divisors (see below), whose sum is σ = 45279614771688. Its totient is φ = 20207249962560.

The previous prime is 30311011011091. The next prime is 30311011011251. The reversal of 30311011011123 is 32111011011303.

It is not a de Polignac number, because 30311011011123 - 2⁵ = 30311011011091 is a prime.

It is a super-2 number, since 2×30311011011123² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30311011011096 and 30311011011105.

It is not an unprimeable number, because it can be changed into a prime (30311011011023) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 20706315 + ... + 22121787.

Almost surely, 2^{30311011011123} is an apocalyptic number.

30311011011123 is a deficient number, since it is larger than the sum of its proper divisors (14968603760565).

30311011011123 is a wasteful number, since it uses less digits than its factorization.

30311011011123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679856 (or 1679847 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 30311011011123 its reverse (32111011011303), we get a palindrome (62422022022426).

The spelling of 30311011011123 in words is "thirty trillion, three hundred eleven billion, eleven million, eleven thousand, one hundred twenty-three".