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12101202312311 = 75997121405287
BaseRepresentation
bin1011000000011000011111…
…0111010111110001110111
31120211212022121002020110202
42300012013313113301313
53041231230242443221
641423114322511115
72356166034326510
oct260060767276167
946755277066422
1012101202312311
113946100255a42
12143536420549b
1369a1a5323118
142db9b65b1a07
1515eba79a0d0b
hexb0187dd7c77

12101202312311 has 16 divisors (see below), whose sum is σ = 13855013452800. Its totient is φ = 10353663116160.

The previous prime is 12101202312301. The next prime is 12101202312341. The reversal of 12101202312311 is 11321320210121.

It is a de Polignac number, because none of the positive numbers 2k-12101202312311 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 (12101202312301) 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, 29655710 + ... + 30060996.

It is an arithmetic number, because the mean of its divisors is an integer number (865938340800).

Almost surely, 212101202312311 is an apocalyptic number.

12101202312311 is a deficient number, since it is larger than the sum of its proper divisors (1753811140489).

12101202312311 is an equidigital number, since it uses as much as digits as its factorization.

12101202312311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413014.

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

Adding to 12101202312311 its reverse (11321320210121), we get a palindrome (23422522522432).

The spelling of 12101202312311 in words is "twelve trillion, one hundred one billion, two hundred two million, three hundred twelve thousand, three hundred eleven".

Divisors: 1 7 599 4193 7121 49847 405287 2837009 4265479 29858353 242766913 1699368391 2886048727 20202341089 1728743187473 12101202312311