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103313011231 = 331312123901
BaseRepresentation
bin110000000110111101…
…1110111001000011111
3100212200001122202021101
41200031323313020133
53143041112324411
6115243352213531
710315123051243
oct1401573671037
9325601582241
10103313011231
113a8a6557511
121803339a2a7
139985cc9111
145001066423
152a4a00c8c1
hex180def721f

103313011231 has 4 divisors (see below), whose sum is σ = 103625135464. Its totient is φ = 103000887000.

The previous prime is 103313011229. The next prime is 103313011237. The reversal of 103313011231 is 132110313301.

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 103313011231 - 21 = 103313011229 is a prime.

It is a super-2 number, since 2×1033130112312 (a number of 23 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 = 103313011199 and 103313011208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103313011237) 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, 156061620 + ... + 156062281.

It is an arithmetic number, because the mean of its divisors is an integer number (25906283866).

Almost surely, 2103313011231 is an apocalyptic number.

103313011231 is a deficient number, since it is larger than the sum of its proper divisors (312124233).

103313011231 is an equidigital number, since it uses as much as digits as its factorization.

103313011231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312124232.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 103313011231 its reverse (132110313301), we get a palindrome (235423324532).

The spelling of 103313011231 in words is "one hundred three billion, three hundred thirteen million, eleven thousand, two hundred thirty-one".

Divisors: 1 331 312123901 103313011231