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120201111110111 = 2371917957404779
BaseRepresentation
bin11011010101001010000000…
…100001111000000111011111
3120202121010002002210221222012
4123111022000201320013133
5111223333333421010421
61103351343401541435
734214146405336223
oct3325120041700737
9522533062727865
10120201111110111
1135333006648929
1211593944aa487b
13520bbba9b9745
142197a9c942783
15dd6a9040795b
hex6d52808781df

120201111110111 has 16 divisors (see below), whose sum is σ = 125608998067200. Its totient is φ = 114808388759328.

The previous prime is 120201111110083. The next prime is 120201111110123. The reversal of 120201111110111 is 111011111102021.

It is a cyclic number.

It is not a de Polignac number, because 120201111110111 - 234 = 120183931240927 is a prime.

It is a super-2 number, since 2×1202011111101112 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120201111110611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 296752520 + ... + 297157298.

It is an arithmetic number, because the mean of its divisors is an integer number (7850562379200).

Almost surely, 2120201111110111 is an apocalyptic number.

120201111110111 is a deficient number, since it is larger than the sum of its proper divisors (5407886957089).

120201111110111 is a wasteful number, since it uses less digits than its factorization.

120201111110111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423478.

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 120201111110111 its reverse (111011111102021), we get a palindrome (231212222212132).

The spelling of 120201111110111 in words is "one hundred twenty trillion, two hundred one billion, one hundred eleven million, one hundred ten thousand, one hundred eleven".

Divisors: 1 23 719 16537 17957 404779 413011 9309917 12911083 291036101 296954909 6693830323 7268616503 167178179569 5226135265657 120201111110111