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2311132013231 = 73241787916673
BaseRepresentation
bin100001101000011010001…
…100111110001010101111
322011221102202121202001112
4201220122030332022233
5300331144243410411
64525415215502235
7325655001660446
oct41503214761257
98157382552045
102311132013231
11811166852418
12313ab552797b
13139c2875c552
147dc06227d5d
15401b7b05b8b
hex21a1a33e2af

2311132013231 has 16 divisors (see below), whose sum is σ = 2352952176960. Its totient is φ = 2269590036480.

The previous prime is 2311132013221. The next prime is 2311132013251. The reversal of 2311132013231 is 1323102311132.

2311132013231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2311132013231 - 226 = 2311064904367 is a prime.

It is a super-2 number, since 2×23111320132312 (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2311132013197 and 2311132013206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311132013221) 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, 138606911 + ... + 138623583.

It is an arithmetic number, because the mean of its divisors is an integer number (147059511060).

Almost surely, 22311132013231 is an apocalyptic number.

2311132013231 is a deficient number, since it is larger than the sum of its proper divisors (41820163729).

2311132013231 is a wasteful number, since it uses less digits than its factorization.

2311132013231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24866.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 2311132013231 its reverse (1323102311132), we get a palindrome (3634234324363).

The spelling of 2311132013231 in words is "two trillion, three hundred eleven billion, one hundred thirty-two million, thirteen thousand, two hundred thirty-one".

Divisors: 1 73 241 7879 16673 17593 575167 1217129 1898839 4018193 131366567 138615247 293328089 9589759391 31659342647 2311132013231