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113101130221 = 1129100178149
BaseRepresentation
bin110100101010101011…
…0100100100111101101
3101210221012201201021221
41221111112210213231
53323112342131341
6123542525423341
711112515513302
oct1512526444755
9353835651257
10113101130221
1143a69704152
1219b0540ab51
13a885b2c4c1
14568cdd30a9
152e1e4b5ed1
hex1a555a49ed

113101130221 has 4 divisors (see below), whose sum is σ = 113201309500. Its totient is φ = 113000950944.

The previous prime is 113101130183. The next prime is 113101130227. The reversal of 113101130221 is 122031101311.

It is a happy number.

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 40463334025 + 72637796196 = 201155^2 + 269514^2 .

It is a cyclic number.

It is not a de Polignac number, because 113101130221 - 215 = 113101097453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113101130195 and 113101130204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113101130227) 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, 50087946 + ... + 50090203.

It is an arithmetic number, because the mean of its divisors is an integer number (28300327375).

Almost surely, 2113101130221 is an apocalyptic number.

It is an amenable number.

113101130221 is a deficient number, since it is larger than the sum of its proper divisors (100179279).

113101130221 is a wasteful number, since it uses less digits than its factorization.

113101130221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100179278.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 113101130221 its reverse (122031101311), we get a palindrome (235132231532).

The spelling of 113101130221 in words is "one hundred thirteen billion, one hundred one million, one hundred thirty thousand, two hundred twenty-one".

Divisors: 1 1129 100178149 113101130221