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2130131031331 = 15797134844023
BaseRepresentation
bin11110111111110101101…
…101000001010100100011
321112122020111100011210011
4132333311231001110203
5234400002021000311
64310322500345351
7306616430006662
oct36776555012443
97478214304704
102130131031331
11751424486776
122a4a006a5257
13125b41625c24
1475155506dd9
153a6225c5321
hex1eff5b41523

2130131031331 has 4 divisors (see below), whose sum is σ = 2130265891152. Its totient is φ = 2129996171512.

The previous prime is 2130131031299. The next prime is 2130131031367. The reversal of 2130131031331 is 1331301310312.

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

It is a cyclic number.

It is not a de Polignac number, because 2130131031331 - 25 = 2130131031299 is a prime.

It is a super-2 number, since 2×21301310313312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2130131001331) 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, 67406215 + ... + 67437808.

It is an arithmetic number, because the mean of its divisors is an integer number (532566472788).

Almost surely, 22130131031331 is an apocalyptic number.

2130131031331 is a deficient number, since it is larger than the sum of its proper divisors (134859821).

2130131031331 is a wasteful number, since it uses less digits than its factorization.

2130131031331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134859820.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 2130131031331 its reverse (1331301310312), we get a palindrome (3461432341643).

The spelling of 2130131031331 in words is "two trillion, one hundred thirty billion, one hundred thirty-one million, thirty-one thousand, three hundred thirty-one".

Divisors: 1 15797 134844023 2130131031331