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31131012233301 = 361170114820947
BaseRepresentation
bin1110001010000010000001…
…11011001111100001010101
311002020002120202202012122020
413011001000323033201111
513040022303112431201
6150113220052323353
76362066334634131
oct705010073174125
9132202522665566
1031131012233301
119a12651904a22
1235a9495013559
13144a846210a16
14798a6b4b23c1
1538ebc819ea36
hex1c5040ecf855

31131012233301 has 8 divisors (see below), whose sum is σ = 42188475595104. Its totient is φ = 20413778513520.

The previous prime is 31131012233297. The next prime is 31131012233357. The reversal of 31131012233301 is 10333221013113.

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

It is not a de Polignac number, because 31131012233301 - 22 = 31131012233297 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31131012232301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85057410291 + ... + 85057410656.

It is an arithmetic number, because the mean of its divisors is an integer number (5273559449388).

Almost surely, 231131012233301 is an apocalyptic number.

It is an amenable number.

31131012233301 is a deficient number, since it is larger than the sum of its proper divisors (11057463361803).

31131012233301 is a wasteful number, since it uses less digits than its factorization.

31131012233301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170114821011.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 31131012233301 its reverse (10333221013113), we get a palindrome (41464233246414).

The spelling of 31131012233301 in words is "thirty-one trillion, one hundred thirty-one billion, twelve million, two hundred thirty-three thousand, three hundred one".

Divisors: 1 3 61 183 170114820947 510344462841 10377004077767 31131012233301