30111042011231 has 4 divisors (see below), whose sum is σ = 30130812887352. Its totient is φ = 30091271135112.

The previous prime is 30111042011221. The next prime is 30111042011233. The reversal of 30111042011231 is 13211024011103.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30111042011231 - 2¹⁰ = 30111042010207 is a prime.

It is a super-2 number, since 2×30111042011231² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30111042011233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9885435776 + ... + 9885438821.

It is an arithmetic number, because the mean of its divisors is an integer number (7532703221838).

Almost surely, 2^{30111042011231} is an apocalyptic number.

30111042011231 is a deficient number, since it is larger than the sum of its proper divisors (19770876121).

30111042011231 is a wasteful number, since it uses less digits than its factorization.

30111042011231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19770876120.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 30111042011231 its reverse (13211024011103), we get a palindrome (43322066022334).

The spelling of 30111042011231 in words is "thirty trillion, one hundred eleven billion, forty-two million, eleven thousand, two hundred thirty-one".