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31301332010130 = 23571361193973897
BaseRepresentation
bin1110001110111111010001…
…10001101000010010010010
311002211101012122110100002210
413013133220301220102102
513100320111443311010
6150323344452252550
76410306121101220
oct707375061502222
9132741178410083
1031301332010130
119a78902994166
1236164a8911156
13146091a49b560
147a2dc77c9b10
15394345b13b20
hex1c77e8c68492

31301332010130 has 256 divisors, whose sum is σ = 94462060041216. Its totient is φ = 6462306385920.

The previous prime is 31301332010083. The next prime is 31301332010141. The reversal of 31301332010130 is 3101023310313.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 31301332010097 and 31301332010106.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 31653342 + ... + 32627238.

It is an arithmetic number, because the mean of its divisors is an integer number (368992422036).

Almost surely, 231301332010130 is an apocalyptic number.

31301332010130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 31301332010130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47231030020608).

31301332010130 is an abundant number, since it is smaller than the sum of its proper divisors (63160728031086).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31301332010130 is a wasteful number, since it uses less digits than its factorization.

31301332010130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974181.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 31301332010130 its reverse (3101023310313), we get a palindrome (34402355320443).

The spelling of 31301332010130 in words is "thirty-one trillion, three hundred one billion, three hundred thirty-two million, ten thousand, one hundred thirty".