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31131301230301 = 477316375542783
BaseRepresentation
bin1110001010000010100100…
…01001101011011011011101
311002020010022220112202222211
413011001102021223123131
513040023401103332201
6150113304454440421
76362106444236026
oct705012211533335
9132203286482884
1031131301230301
119a1278aa53718
1235a9555963111
13144a89105856c
14798a97a1dc4d
1538ebe3738651
hex1c505226b6dd

31131301230301 has 16 divisors (see below), whose sum is σ = 32248892841984. Its totient is φ = 30033187357824.

The previous prime is 31131301230247. The next prime is 31131301230353. The reversal of 31131301230301 is 10303210313113.

It is a cyclic number.

It is not a de Polignac number, because 31131301230301 - 221 = 31131299133149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31131301231301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2845156 + ... + 8387938.

It is an arithmetic number, because the mean of its divisors is an integer number (2015555802624).

Almost surely, 231131301230301 is an apocalyptic number.

It is an amenable number.

31131301230301 is a deficient number, since it is larger than the sum of its proper divisors (1117591611683).

31131301230301 is a wasteful number, since it uses less digits than its factorization.

31131301230301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5544540.

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

Adding to 31131301230301 its reverse (10303210313113), we get a palindrome (41434511543414).

The spelling of 31131301230301 in words is "thirty-one trillion, one hundred thirty-one billion, three hundred one million, two hundred thirty thousand, three hundred one".

Divisors: 1 47 73 1637 3431 76939 119501 5542783 5616547 260510801 404623159 9073535771 19017288473 426456181237 662368111283 31131301230301