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131022113033 = 718717444719
BaseRepresentation
bin111101000000110000…
…1101100100100001001
3110112012011012222010002
41322001201230210021
54121313130104113
6140105110332345
712315564404510
oct1720141544411
9415164188102
10131022113033
1150625626849
122148705a0b5
13c480884b46
1464ad131677
15361c961c58
hex1e8186c909

131022113033 has 4 divisors (see below), whose sum is σ = 149739557760. Its totient is φ = 112304668308.

The previous prime is 131022113029. The next prime is 131022113039. The reversal of 131022113033 is 330311220131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 131022113033 - 22 = 131022113029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131022112996 and 131022113014.

It is not an unprimeable number, because it can be changed into a prime (131022113039) 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, 9358722353 + ... + 9358722366.

It is an arithmetic number, because the mean of its divisors is an integer number (37434889440).

Almost surely, 2131022113033 is an apocalyptic number.

It is an amenable number.

131022113033 is a deficient number, since it is larger than the sum of its proper divisors (18717444727).

131022113033 is an equidigital number, since it uses as much as digits as its factorization.

131022113033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18717444726.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 131022113033 its reverse (330311220131), we get a palindrome (461333333164).

The spelling of 131022113033 in words is "one hundred thirty-one billion, twenty-two million, one hundred thirteen thousand, thirty-three".

Divisors: 1 7 18717444719 131022113033