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1102012131 = 311175413631
BaseRepresentation
bin100000110101111…
…0101111011100011
32211210122000110010
41001223311323203
54224103342011
6301203540003
736210643233
oct10153657343
92753560403
101102012131
1151606a030
1226908a603
131474067ac
14a6503cc3
1566b321a6
hex41af5ee3

1102012131 has 32 divisors (see below), whose sum is σ = 1700822016. Its totient is φ = 627264000.

The previous prime is 1102012129. The next prime is 1102012139. The reversal of 1102012131 is 1312102011.

It is not a de Polignac number, because 1102012131 - 21 = 1102012129 is a prime.

It is a super-2 number, since 2×11020121312 = 2428861473742322322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1102012139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 301686 + ... + 305316.

It is an arithmetic number, because the mean of its divisors is an integer number (53150688).

Almost surely, 21102012131 is an apocalyptic number.

1102012131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1102012131 is a deficient number, since it is larger than the sum of its proper divisors (598809885).

1102012131 is a wasteful number, since it uses less digits than its factorization.

1102012131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4203.

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

The square root of 1102012131 is about 33196.5680605692. The cubic root of 1102012131 is about 1032.9091511027.

Adding to 1102012131 its reverse (1312102011), we get a palindrome (2414114142).

The spelling of 1102012131 in words is "one billion, one hundred two million, twelve thousand, one hundred thirty-one".

Divisors: 1 3 11 17 33 51 187 541 561 1623 3631 5951 9197 10893 17853 27591 39941 61727 101167 119823 185181 303501 678997 1964371 2036991 5893113 21608081 33394307 64824243 100182921 367337377 1102012131