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10021133131 = 61164280871
BaseRepresentation
bin10010101010100111…
…00101101101001011
3221212101112022022221
421111103211231023
5131010402230011
64334215354511
7503222140402
oct112523455513
927771468287
1010021133131
114282739709
121b38082a37
13c391a9599
146b0ca4639
153d9b84971
hex2554e5b4b

10021133131 has 4 divisors (see below), whose sum is σ = 10185414064. Its totient is φ = 9856852200.

The previous prime is 10021133093. The next prime is 10021133179. The reversal of 10021133131 is 13133112001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10021133131 - 29 = 10021132619 is a prime.

It is a super-2 number, since 2×100211331312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10021136131) 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, 82140375 + ... + 82140496.

It is an arithmetic number, because the mean of its divisors is an integer number (2546353516).

Almost surely, 210021133131 is an apocalyptic number.

10021133131 is a deficient number, since it is larger than the sum of its proper divisors (164280933).

10021133131 is an equidigital number, since it uses as much as digits as its factorization.

10021133131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164280932.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 10021133131 its reverse (13133112001), we get a palindrome (23154245132).

The spelling of 10021133131 in words is "ten billion, twenty-one million, one hundred thirty-three thousand, one hundred thirty-one".

Divisors: 1 61 164280871 10021133131