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2011213223101 = 15923126308687
BaseRepresentation
bin11101010001000101101…
…001100101010010111101
321010021021220111121022101
4131101011221211102331
5230422431041114401
64135534423145101
7265206511220425
oct35210551452275
97107256447271
102011213223101
11705a50483315
122859532a5191
1311786c6c5924
146d4b3bc5485
15374b2639101
hex1d445a654bd

2011213223101 has 4 divisors (see below), whose sum is σ = 2011339547712. Its totient is φ = 2011086898492.

The previous prime is 2011213223099. The next prime is 2011213223119. The reversal of 2011213223101 is 1013223121102.

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.

It is a cyclic number.

It is not a de Polignac number, because 2011213223101 - 21 = 2011213223099 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 (2011213223401) 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, 63138421 + ... + 63170266.

It is an arithmetic number, because the mean of its divisors is an integer number (502834886928).

Almost surely, 22011213223101 is an apocalyptic number.

It is an amenable number.

2011213223101 is a deficient number, since it is larger than the sum of its proper divisors (126324611).

2011213223101 is a wasteful number, since it uses less digits than its factorization.

2011213223101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126324610.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2011213223101 its reverse (1013223121102), we get a palindrome (3024436344203).

The spelling of 2011213223101 in words is "two trillion, eleven billion, two hundred thirteen million, two hundred twenty-three thousand, one hundred one".

Divisors: 1 15923 126308687 2011213223101