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101231003231 = 201435025617
BaseRepresentation
bin101111001000111010…
…1101000011001011111
3100200021221222210012222
41132101311220121133
53124310114100411
6114301015415555
710212412221131
oct1362165503137
9320257883188
10101231003231
1139a28298046
12177520845bb
13971386a717
144c84741051
15297734b4db
hex1791d6865f

101231003231 has 4 divisors (see below), whose sum is σ = 101236048992. Its totient is φ = 101225957472.

The previous prime is 101231003227. The next prime is 101231003239. The reversal of 101231003231 is 132300132101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132300132101 = 260999506899.

It is a cyclic number.

It is not a de Polignac number, because 101231003231 - 22 = 101231003227 is a prime.

It is a super-2 number, since 2×1012310032312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101231003239) 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, 2492666 + ... + 2532951.

It is an arithmetic number, because the mean of its divisors is an integer number (25309012248).

Almost surely, 2101231003231 is an apocalyptic number.

101231003231 is a deficient number, since it is larger than the sum of its proper divisors (5045761).

101231003231 is an equidigital number, since it uses as much as digits as its factorization.

101231003231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5045760.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 101231003231 its reverse (132300132101), we get a palindrome (233531135332).

The spelling of 101231003231 in words is "one hundred one billion, two hundred thirty-one million, three thousand, two hundred thirty-one".

Divisors: 1 20143 5025617 101231003231