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131022001103 = 718717428729
BaseRepresentation
bin111101000000110000…
…1010001001111001111
3110112012011000021120112
41322001201101033033
54121313113013403
6140105104110235
712315563430260
oct1720141211717
9415164007515
10131022001103
115062555a744
122148700537b
13c480845c06
1464ad102967
15361c93d9d8
hex1e818513cf

131022001103 has 4 divisors (see below), whose sum is σ = 149739429840. Its totient is φ = 112304572368.

The previous prime is 131022001069. The next prime is 131022001111. The reversal of 131022001103 is 301100220131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301100220131 = 2312771301903.

It is a cyclic number.

It is not a de Polignac number, because 131022001103 - 26 = 131022001039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131022001193) 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, 9358714358 + ... + 9358714371.

It is an arithmetic number, because the mean of its divisors is an integer number (37434857460).

Almost surely, 2131022001103 is an apocalyptic number.

131022001103 is a deficient number, since it is larger than the sum of its proper divisors (18717428737).

131022001103 is an equidigital number, since it uses as much as digits as its factorization.

131022001103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18717428736.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 131022001103 its reverse (301100220131), we get a palindrome (432122221234).

The spelling of 131022001103 in words is "one hundred thirty-one billion, twenty-two million, one thousand, one hundred three".

Divisors: 1 7 18717428729 131022001103