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122013200311 = 149818880539
BaseRepresentation
bin111000110100010001…
…1011010111110110111
3102122221022100210010221
41301220203122332313
53444340334402221
6132015130155211
711546413043032
oct1615043327667
9378838323127
10122013200311
11478222a8332
121b791b82b07
13b676303b62
145c9687a019
153291ac4541
hex1c688dafb7

122013200311 has 4 divisors (see below), whose sum is σ = 122832081000. Its totient is φ = 121194319624.

The previous prime is 122013200293. The next prime is 122013200317. The reversal of 122013200311 is 113002310221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113002310221 = 754714973143.

It is a cyclic number.

It is not a de Polignac number, because 122013200311 - 25 = 122013200279 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 (122013200317) 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, 409440121 + ... + 409440418.

It is an arithmetic number, because the mean of its divisors is an integer number (30708020250).

Almost surely, 2122013200311 is an apocalyptic number.

122013200311 is a deficient number, since it is larger than the sum of its proper divisors (818880689).

122013200311 is an equidigital number, since it uses as much as digits as its factorization.

122013200311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818880688.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 122013200311 its reverse (113002310221), we get a palindrome (235015510532).

The spelling of 122013200311 in words is "one hundred twenty-two billion, thirteen million, two hundred thousand, three hundred eleven".

Divisors: 1 149 818880539 122013200311