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131030011403 = 719182239237
BaseRepresentation
bin111101000000111111…
…1110100111000001011
3110112012201002020122022
41322001333310320023
54121322140331103
6140105551515055
712316021502024
oct1720177647013
9415181066568
10131030011403
115062a030a25
1221489828a8b
13c4823bbc35
1464b01c9c4b
15361d4c2138
hex1e81ff4e0b

131030011403 has 4 divisors (see below), whose sum is σ = 131212251360. Its totient is φ = 130847771448.

The previous prime is 131030011379. The next prime is 131030011433. The reversal of 131030011403 is 304110030131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-131030011403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131030011433) 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, 91118900 + ... + 91120337.

It is an arithmetic number, because the mean of its divisors is an integer number (32803062840).

Almost surely, 2131030011403 is an apocalyptic number.

131030011403 is a deficient number, since it is larger than the sum of its proper divisors (182239957).

131030011403 is an equidigital number, since it uses as much as digits as its factorization.

131030011403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182239956.

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

Adding to 131030011403 its reverse (304110030131), we get a palindrome (435140041534).

The spelling of 131030011403 in words is "one hundred thirty-one billion, thirty million, eleven thousand, four hundred three".

Divisors: 1 719 182239237 131030011403