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131211213300203 = 434931880370297
BaseRepresentation
bin11101110101010111111101…
…110000100110000111101011
3122012120200002001112001212012
4131311113331300212013223
5114144231031101101303
61143021333234310135
736431461116661031
oct3565277560460753
9565520061461765
10131211213300203
11388983aa269773
1212871741a2834b
13582a21a02a56a
142458929a3c551
1510281889085d8
hex7755fdc261eb

131211213300203 has 16 divisors (see below), whose sum is σ = 134307030692736. Its totient is φ = 128117420867520.

The previous prime is 131211213300169. The next prime is 131211213300221. The reversal of 131211213300203 is 302003312112131.

It is a cyclic number.

It is not a de Polignac number, because 131211213300203 - 220 = 131211212251627 is a prime.

It is a super-2 number, since 2×1312112133002032 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131211213300703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1866491351 + ... + 1866561647.

It is an arithmetic number, because the mean of its divisors is an integer number (8394189418296).

Almost surely, 2131211213300203 is an apocalyptic number.

131211213300203 is a deficient number, since it is larger than the sum of its proper divisors (3095817392533).

131211213300203 is an equidigital number, since it uses as much as digits as its factorization.

131211213300203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84074.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 131211213300203 its reverse (302003312112131), we get a palindrome (433214525412334).

The spelling of 131211213300203 in words is "one hundred thirty-one trillion, two hundred eleven billion, two hundred thirteen million, three hundred thousand, two hundred three".

Divisors: 1 43 4931 8803 70297 212033 378529 3022771 43407593 346634507 618824491 1866526499 14905283801 26609453113 3051423565121 131211213300203