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103103130231 = 357313074447
BaseRepresentation
bin110000000000101101…
…1001110101001110111
3100212010102201200200000
41200001123032221313
53142123400131411
6115210453522343
710306664101263
oct1400133165167
9325112650600
10103103130231
113a7a9035842
1217b950433b3
13995169248a
144dc12310a3
152a368a0956
hex18016cea77

103103130231 has 48 divisors (see below), whose sum is σ = 156713217024. Its totient is φ = 67726736064.

The previous prime is 103103130227. The next prime is 103103130271. The reversal of 103103130231 is 132031301301.

It is a happy number.

103103130231 is a `hidden beast` number, since 10 + 310 + 313 + 0 + 2 + 31 = 666.

It is not a de Polignac number, because 103103130231 - 22 = 103103130227 is a prime.

It is a super-2 number, since 2×1031031302312 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103103130211) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23182650 + ... + 23187096.

It is an arithmetic number, because the mean of its divisors is an integer number (3264858688).

Almost surely, 2103103130231 is an apocalyptic number.

103103130231 is a deficient number, since it is larger than the sum of its proper divisors (53610086793).

103103130231 is an equidigital number, since it uses as much as digits as its factorization.

103103130231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5842 (or 5830 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 103103130231 its reverse (132031301301), we get a palindrome (235134431532).

The spelling of 103103130231 in words is "one hundred three billion, one hundred three million, one hundred thirty thousand, two hundred thirty-one".

Divisors: 1 3 9 27 73 81 219 243 657 1307 1971 3921 4447 5913 11763 13341 17739 35289 40023 95411 105867 120069 286233 317601 324631 360207 858699 973893 1080621 2576097 2921679 5812229 7728291 8765037 17436687 23184873 26295111 52310061 78885333 156930183 424292717 470790549 1272878151 1412371647 3818634453 11455903359 34367710077 103103130231