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10201031231131 = 13784694710087
BaseRepresentation
bin1001010001110001110011…
…0101111100011010011011
31100010012122101221220111101
42110130130311330122123
52314113202443344011
633410142234012231
72102000030536126
oct224343465743233
940105571856441
1010201031231131
11328326220a454
121189040877077
1358cc50ccb020
14273a3816b3bd
1512a543bb72c1
hex9471cd7c69b

10201031231131 has 4 divisors (see below), whose sum is σ = 10985725941232. Its totient is φ = 9416336521032.

The previous prime is 10201031231129. The next prime is 10201031231137. The reversal of 10201031231131 is 13113213010201.

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

It is a cyclic number.

It is not a de Polignac number, because 10201031231131 - 21 = 10201031231129 is a prime.

It is a super-2 number, since 2×102010312311312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10201031231099 and 10201031231108.

It is not an unprimeable number, because it can be changed into a prime (10201031231137) 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, 392347355031 + ... + 392347355056.

It is an arithmetic number, because the mean of its divisors is an integer number (2746431485308).

Almost surely, 210201031231131 is an apocalyptic number.

10201031231131 is a deficient number, since it is larger than the sum of its proper divisors (784694710101).

10201031231131 is an equidigital number, since it uses as much as digits as its factorization.

10201031231131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784694710100.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 10201031231131 its reverse (13113213010201), we get a palindrome (23314244241332).

The spelling of 10201031231131 in words is "ten trillion, two hundred one billion, thirty-one million, two hundred thirty-one thousand, one hundred thirty-one".

Divisors: 1 13 784694710087 10201031231131