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131041232020 = 2256552061601
BaseRepresentation
bin111101000001010101…
…0101000010010010100
3110112020111012022102201
41322002222220102110
54121333023411040
6140111032214244
712316216044136
oct1720252502224
9415214168381
10131041232020
11506353a5166
122149153a384
13c48481a25a
1464b18ab056
15361e48ba9a
hex1e82aa8494

131041232020 has 12 divisors (see below), whose sum is σ = 275186587284. Its totient is φ = 52416492800.

The previous prime is 131041231963. The next prime is 131041232071. The reversal of 131041232020 is 20232140131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 62906659344 + 68134572676 = 250812^2 + 261026^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3276030781 + ... + 3276030820.

It is an arithmetic number, because the mean of its divisors is an integer number (22932215607).

Almost surely, 2131041232020 is an apocalyptic number.

131041232020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131041232020 is an abundant number, since it is smaller than the sum of its proper divisors (144145355264).

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

131041232020 is a wasteful number, since it uses less digits than its factorization.

131041232020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6552061610 (or 6552061608 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 131041232020 its reverse (20232140131), we get a palindrome (151273372151).

The spelling of 131041232020 in words is "one hundred thirty-one billion, forty-one million, two hundred thirty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 6552061601 13104123202 26208246404 32760308005 65520616010 131041232020