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131020323432122 = 2421846915529369
BaseRepresentation
bin11101110010100110001011…
…110101100010011010111010
3122011220102100121120000222002
4131302212023311202122322
5114133114110244311442
61142353523342101002
736411622516606265
oct3562461365423272
9564812317500862
10131020323432122
1138824452980513
121284074927a762
13581521823bab7
14244d5bb83dcdc
151023215167732
hex77298bd626ba

131020323432122 has 8 divisors (see below), whose sum is σ = 196530544391700. Its totient is φ = 65510141968224.

The previous prime is 131020323432101. The next prime is 131020323432127. The reversal of 131020323432122 is 221234323020131.

It can be written as a sum of positive squares in 2 ways, for example, as 96376257413881 + 34644066018241 = 9817141^2 + 5885921^2 .

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

It is not an unprimeable number, because it can be changed into a prime (131020323432127) 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, 672254 + ... + 16201622.

Almost surely, 2131020323432122 is an apocalyptic number.

131020323432122 is a deficient number, since it is larger than the sum of its proper divisors (65510220959578).

131020323432122 is a wasteful number, since it uses less digits than its factorization.

131020323432122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19747840.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 131020323432122 its reverse (221234323020131), we get a palindrome (352254646452253).

The spelling of 131020323432122 in words is "one hundred thirty-one trillion, twenty billion, three hundred twenty-three million, four hundred thirty-two thousand, one hundred twenty-two".

Divisors: 1 2 4218469 8436938 15529369 31058738 65510161716061 131020323432122