Search a number
-
+
131211330023 = 893793889933
BaseRepresentation
bin111101000110011001…
…1100000000111100111
3110112200100021012000202
41322030303200013213
54122210100030043
6140135550101115
712323352621524
oct1721463400747
9415610235022
10131211330023
1150712414324
122151a4aa79b
13c4b0b35067
1464ca30814b
15362e38b1b8
hex1e8cce01e7

131211330023 has 8 divisors (see below), whose sum is σ = 133035742800. Its totient is φ = 129394698048.

The previous prime is 131211329989. The next prime is 131211330049. The reversal of 131211330023 is 320033112131.

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

It is a cyclic number.

It is not a de Polignac number, because 131211330023 - 218 = 131211067879 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131211329977 and 131211330004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131211335023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1911236 + ... + 1978697.

It is an arithmetic number, because the mean of its divisors is an integer number (16629467850).

Almost surely, 2131211330023 is an apocalyptic number.

131211330023 is a deficient number, since it is larger than the sum of its proper divisors (1824412777).

131211330023 is an equidigital number, since it uses as much as digits as its factorization.

131211330023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3890401.

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

Adding to 131211330023 its reverse (320033112131), we get a palindrome (451244442154).

The spelling of 131211330023 in words is "one hundred thirty-one billion, two hundred eleven million, three hundred thirty thousand, twenty-three".

Divisors: 1 89 379 33731 3889933 346204037 1474284607 131211330023