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30211231123111 = 311975167957419
BaseRepresentation
bin1101101111010000110011…
…01100110000011010100111
310221222011110122022121112011
412313220121230300122213
512424440100131414421
6144130503055135051
76235455320330323
oct667503154603247
9127864418277464
1030211231123111
119698569400285
12347b180214487
1313b1ba35192ac
14766334d02983
15375ce42434e1
hex1b7a19b306a7

30211231123111 has 16 divisors (see below), whose sum is σ = 31350189404160. Its totient is φ = 29082605761440.

The previous prime is 30211231123093. The next prime is 30211231123123. The reversal of 30211231123111 is 11132113211203.

It is a cyclic number.

It is not a de Polignac number, because 30211231123111 - 211 = 30211231121063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30211231103111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31076160 + ... + 32033578.

It is an arithmetic number, because the mean of its divisors is an integer number (1959386837760).

Almost surely, 230211231123111 is an apocalyptic number.

30211231123111 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

30211231123111 is a deficient number, since it is larger than the sum of its proper divisors (1138958281049).

30211231123111 is a wasteful number, since it uses less digits than its factorization.

30211231123111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962814.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 30211231123111 its reverse (11132113211203), we get a palindrome (41343344334314).

The spelling of 30211231123111 in words is "thirty trillion, two hundred eleven billion, two hundred thirty-one million, one hundred twenty-three thousand, one hundred eleven".

Divisors: 1 31 197 5167 6107 160177 957419 1017899 29679989 31554869 188611543 4946983973 5846957833 153356503163 974555842681 30211231123111