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1231232300103 = 31331570058977
BaseRepresentation
bin10001111010101011001…
…010011111010001000111
311100201000200210100022010
4101322223022133101013
5130133030432100403
62341341553105303
7154645040605401
oct21725312372107
94321020710263
101231232300103
11435187598463
1217a755258233
138c149073160
14438404adb71
1522061ad0603
hex11eab29f447

1231232300103 has 8 divisors (see below), whose sum is σ = 1767923302768. Its totient is φ = 757681415424.

The previous prime is 1231232300063. The next prime is 1231232300117. The reversal of 1231232300103 is 3010032321321.

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

It is not a de Polignac number, because 1231232300103 - 222 = 1231228105799 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1231232300103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231232300143) 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, 15785029450 + ... + 15785029527.

It is an arithmetic number, because the mean of its divisors is an integer number (220990412846).

Almost surely, 21231232300103 is an apocalyptic number.

1231232300103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1231232300103 is a deficient number, since it is larger than the sum of its proper divisors (536691002665).

1231232300103 is a wasteful number, since it uses less digits than its factorization.

1231232300103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31570058993.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1231232300103 its reverse (3010032321321), we get a palindrome (4241264621424).

The spelling of 1231232300103 in words is "one trillion, two hundred thirty-one billion, two hundred thirty-two million, three hundred thousand, one hundred three".

Divisors: 1 3 13 39 31570058977 94710176931 410410766701 1231232300103