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10101021193 = 23942263687
BaseRepresentation
bin10010110100001000…
…10101101000001001
3222001221212001011001
421122010111220021
5131141330134233
64350151535001
7505212156244
oct113204255011
928057761131
1010101021193
1143138437aa
121b5a98a461
13c4c8caa23
146bb73c25b
153e1bb527d
hex25a115a09

10101021193 has 4 divisors (see below), whose sum is σ = 10143285120. Its totient is φ = 10058757268.

The previous prime is 10101021181. The next prime is 10101021241. The reversal of 10101021193 is 39112010101.

10101021193 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39112010101 = 237431647307.

It is a cyclic number.

It is not a de Polignac number, because 10101021193 - 29 = 10101020681 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10101021193.

It is not an unprimeable number, because it can be changed into a prime (10101051193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21131605 + ... + 21132082.

It is an arithmetic number, because the mean of its divisors is an integer number (2535821280).

Almost surely, 210101021193 is an apocalyptic number.

It is an amenable number.

10101021193 is a deficient number, since it is larger than the sum of its proper divisors (42263927).

10101021193 is an equidigital number, since it uses as much as digits as its factorization.

10101021193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42263926.

The product of its (nonzero) digits is 54, while the sum is 19.

Adding to 10101021193 its reverse (39112010101), we get a palindrome (49213031294).

The spelling of 10101021193 in words is "ten billion, one hundred one million, twenty-one thousand, one hundred ninety-three".

Divisors: 1 239 42263687 10101021193