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131101033021 = 742194439137
BaseRepresentation
bin111101000011000111…
…0110000001000111101
3110112101122201111222121
41322012032300020331
54121443331024041
6140121010042541
712320543252110
oct1720616601075
9415348644877
10131101033021
115066612a582
12214a9579451
13c49402776a
1464b97d6577
1536248507d1
hex1e863b023d

131101033021 has 8 divisors (see below), whose sum is σ = 149865298880. Its totient is φ = 112345653888.

The previous prime is 131101033009. The next prime is 131101033057. The reversal of 131101033021 is 120330101131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131101033021 - 219 = 131100508733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131101032986 and 131101033004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131101033001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2190036 + ... + 2249101.

It is an arithmetic number, because the mean of its divisors is an integer number (18733162360).

Almost surely, 2131101033021 is an apocalyptic number.

It is an amenable number.

131101033021 is a deficient number, since it is larger than the sum of its proper divisors (18764265859).

131101033021 is an equidigital number, since it uses as much as digits as its factorization.

131101033021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4443363.

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

Adding to 131101033021 its reverse (120330101131), we get a palindrome (251431134152).

The spelling of 131101033021 in words is "one hundred thirty-one billion, one hundred one million, thirty-three thousand, twenty-one".

Divisors: 1 7 4219 29533 4439137 31073959 18728719003 131101033021