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120210111121111 = 11101108199920001
BaseRepresentation
bin11011010101010010011000…
…111110001100011011010111
3120202121222022022220220001221
4123111102120332030123113
5111224010301421333421
61103355432423231211
734214615421224314
oct3325223076143327
9522558268826057
10120210111121111
1135336904947350
1211595636ba8507
13520c9c3471a3b
1421982b3d5bd0b
15dd6e1a5d7841
hex6d5498f8c6d7

120210111121111 has 8 divisors (see below), whose sum is σ = 132436702082448. Its totient is φ = 108199920000000.

The previous prime is 120210111121099. The next prime is 120210111121157. The reversal of 120210111121111 is 111121111012021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120210111121111 - 213 = 120210111112919 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 (120210111128111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54099958890 + ... + 54099961111.

It is an arithmetic number, because the mean of its divisors is an integer number (16554587760306).

Almost surely, 2120210111121111 is an apocalyptic number.

120210111121111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

120210111121111 is a deficient number, since it is larger than the sum of its proper divisors (12226590961337).

120210111121111 is a wasteful number, since it uses less digits than its factorization.

120210111121111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108199920113.

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 120210111121111 its reverse (111121111012021), we get a palindrome (231331222133132).

The spelling of 120210111121111 in words is "one hundred twenty trillion, two hundred ten billion, one hundred eleven million, one hundred twenty-one thousand, one hundred eleven".

Divisors: 1 11 101 1111 108199920001 1190199120011 10928191920101 120210111121111