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1013112111 = 31130700367
BaseRepresentation
bin111100011000101…
…101110100101111
32121121100102112210
4330120231310233
54033324041421
6244310301503
734051211424
oct7430556457
92547312483
101013112111
1147a96a140
12243357893
13131b7b42b
14987a1d4b
155de21576
hex3c62dd2f

1013112111 has 8 divisors (see below), whose sum is σ = 1473617664. Its totient is φ = 614007320.

The previous prime is 1013112041. The next prime is 1013112143. The reversal of 1013112111 is 1112113101.

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 1013112111 - 222 = 1008917807 is a prime.

It is a super-2 number, since 2×10131121112 = 2052792298909752642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013112011) 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, 15350151 + ... + 15350216.

It is an arithmetic number, because the mean of its divisors is an integer number (184202208).

Almost surely, 21013112111 is an apocalyptic number.

1013112111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1013112111 is a deficient number, since it is larger than the sum of its proper divisors (460505553).

1013112111 is a wasteful number, since it uses less digits than its factorization.

1013112111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30700381.

The product of its (nonzero) digits is 6, while the sum is 12.

The square root of 1013112111 is about 31829.4220965446. The cubic root of 1013112111 is about 1004.3517385676.

Adding to 1013112111 its reverse (1112113101), we get a palindrome (2125225212).

The spelling of 1013112111 in words is "one billion, thirteen million, one hundred twelve thousand, one hundred eleven".

Divisors: 1 3 11 33 30700367 92101101 337704037 1013112111