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23122013001131 = 112102001181921
BaseRepresentation
bin1010100000111100000110…
…10111110001010110101011
310000212102221211201110000202
411100132003113301112223
511012312340312014011
6121102034531422415
74604340015462242
oct520360327612653
9100772854643022
1023122013001131
117404a99605430
12271524b454a0b
13cb9520077c15
1459d17b97b959
152a16cb16023b
hex1507835f15ab

23122013001131 has 4 divisors (see below), whose sum is σ = 25224014183064. Its totient is φ = 21020011819200.

The previous prime is 23122013001083. The next prime is 23122013001149. The reversal of 23122013001131 is 13110031022132.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23122013001131 is a prime.

It is a super-2 number, since 2×231220130011312 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23122013001931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1051000590950 + ... + 1051000590971.

It is an arithmetic number, because the mean of its divisors is an integer number (6306003545766).

Almost surely, 223122013001131 is an apocalyptic number.

23122013001131 is a deficient number, since it is larger than the sum of its proper divisors (2102001181933).

23122013001131 is a wasteful number, since it uses less digits than its factorization.

23122013001131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102001181932.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 23122013001131 its reverse (13110031022132), we get a palindrome (36232044023263).

The spelling of 23122013001131 in words is "twenty-three trillion, one hundred twenty-two billion, thirteen million, one thousand, one hundred thirty-one".

Divisors: 1 11 2102001181921 23122013001131