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102013031101 = 971051680733
BaseRepresentation
bin101111100000001110…
…0110101001010111101
3100202022110111220210011
41133000130311022331
53132410313443401
6114510353143221
710240656312562
oct1370034651275
9322273456704
10102013031101
113a299773173
121792bb5ab11
13980989a1c7
144d1a54c869
1529c0d23451
hex17c07352bd

102013031101 has 4 divisors (see below), whose sum is σ = 103064711932. Its totient is φ = 100961350272.

The previous prime is 102013031077. The next prime is 102013031143. The reversal of 102013031101 is 101130310201.

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

It can be written as a sum of positive squares in 2 ways, for example, as 45252351076 + 56760680025 = 212726^2 + 238245^2 .

It is a cyclic number.

It is not a de Polignac number, because 102013031101 - 29 = 102013030589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102013037101) 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, 525840270 + ... + 525840463.

It is an arithmetic number, because the mean of its divisors is an integer number (25766177983).

Almost surely, 2102013031101 is an apocalyptic number.

It is an amenable number.

102013031101 is a deficient number, since it is larger than the sum of its proper divisors (1051680831).

102013031101 is an equidigital number, since it uses as much as digits as its factorization.

102013031101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051680830.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 102013031101 its reverse (101130310201), we get a palindrome (203143341302).

The spelling of 102013031101 in words is "one hundred two billion, thirteen million, thirty-one thousand, one hundred one".

Divisors: 1 97 1051680733 102013031101