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10011102021 = 328313401743
BaseRepresentation
bin10010101001011010…
…10100101101000101
3221211200122200020100
421110231110231011
5131000320231041
64333220354313
7503040651234
oct112455245505
927750580210
1010011102021
114278008138
121b34845999
13c370a680b
146ad812b1b
153d8d526b6
hex254b54b45

10011102021 has 12 divisors (see below), whose sum is σ = 14634704448. Its totient is φ = 6593657064.

The previous prime is 10011102019. The next prime is 10011102029. The reversal of 10011102021 is 12020111001.

It is a happy number.

It is not a de Polignac number, because 10011102021 - 21 = 10011102019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10011101994 and 10011102012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10011102029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6700125 + ... + 6701618.

It is an arithmetic number, because the mean of its divisors is an integer number (1219558704).

Almost surely, 210011102021 is an apocalyptic number.

It is an amenable number.

10011102021 is a deficient number, since it is larger than the sum of its proper divisors (4623602427).

10011102021 is a wasteful number, since it uses less digits than its factorization.

10011102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13401832 (or 13401829 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 10011102021 its reverse (12020111001), we get a palindrome (22031213022).

The spelling of 10011102021 in words is "ten billion, eleven million, one hundred two thousand, twenty-one".

Divisors: 1 3 9 83 249 747 13401743 40205229 120615687 1112344669 3337034007 10011102021