30123311112111 has 64 divisors (see below), whose sum is σ = 49151621975040. Its totient is φ = 16017694556160.

The previous prime is 30123311112109. The next prime is 30123311112121. The reversal of 30123311112111 is 11121111332103.

It is not a de Polignac number, because 30123311112111 - 2¹ = 30123311112109 is a prime.

It is a super-2 number, since 2×30123311112111² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30123311112121) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 877267135 + ... + 877301471.

It is an arithmetic number, because the mean of its divisors is an integer number (767994093360).

Almost surely, 2^{30123311112111} is an apocalyptic number.

30123311112111 is a deficient number, since it is larger than the sum of its proper divisors (19028310862929).

30123311112111 is a wasteful number, since it uses less digits than its factorization.

30123311112111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62064.

The product of its (nonzero) digits is 108, while the sum is 21.

Adding to 30123311112111 its reverse (11121111332103), we get a palindrome (41244422444214).

The spelling of 30123311112111 in words is "thirty trillion, one hundred twenty-three billion, three hundred eleven million, one hundred twelve thousand, one hundred eleven".