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30111131101 = 118725367423
BaseRepresentation
bin11100000010110000…
…110110010111011101
32212201111101221120211
4130002300312113131
5443131422143401
621455522012421
72114116251142
oct340260662735
985644357524
1030111131101
1111851a48517
125a041a7111
132abb40524c
1416590d63c9
15bb377b951
hex702c365dd

30111131101 has 4 divisors (see below), whose sum is σ = 30136499712. Its totient is φ = 30085762492.

The previous prime is 30111131093. The next prime is 30111131243. The reversal of 30111131101 is 10113111103.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10113111103 = 67315026911.

It is a cyclic number.

It is not a de Polignac number, because 30111131101 - 23 = 30111131093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30111137101) 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, 12682525 + ... + 12684898.

It is an arithmetic number, because the mean of its divisors is an integer number (7534124928).

Almost surely, 230111131101 is an apocalyptic number.

It is an amenable number.

30111131101 is a deficient number, since it is larger than the sum of its proper divisors (25368611).

30111131101 is a wasteful number, since it uses less digits than its factorization.

30111131101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25368610.

The product of its (nonzero) digits is 9, while the sum is 13.

Adding to 30111131101 its reverse (10113111103), we get a palindrome (40224242204).

The spelling of 30111131101 in words is "thirty billion, one hundred eleven million, one hundred thirty-one thousand, one hundred one".

Divisors: 1 1187 25367423 30111131101