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10120223111 = 71091423579
BaseRepresentation
bin10010110110011011…
…00101100110000111
3222010021222121020012
421123031211212013
5131211234114421
64352115300435
7505534322435
oct113315454607
928107877205
1010120223111
114323669459
121b652aa71b
13c53891acb
146c00d9d55
153e370995b
hex25b365987

10120223111 has 4 divisors (see below), whose sum is σ = 10121653800. Its totient is φ = 10118792424.

The previous prime is 10120223101. The next prime is 10120223167. The reversal of 10120223111 is 11132202101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11132202101 = 23484008787.

It is a cyclic number.

It is not a de Polignac number, because 10120223111 - 214 = 10120206727 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 (10120223101) 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, 704681 + ... + 718898.

It is an arithmetic number, because the mean of its divisors is an integer number (2530413450).

Almost surely, 210120223111 is an apocalyptic number.

10120223111 is a deficient number, since it is larger than the sum of its proper divisors (1430689).

10120223111 is an equidigital number, since it uses as much as digits as its factorization.

10120223111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1430688.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 10120223111 its reverse (11132202101), we get a palindrome (21252425212).

The spelling of 10120223111 in words is "ten billion, one hundred twenty million, two hundred twenty-three thousand, one hundred eleven".

Divisors: 1 7109 1423579 10120223111