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200102010131 = 238700087397
BaseRepresentation
bin1011101001011100000…
…0100101110100010011
3201010111110020100002102
42322113000211310103
511234302103311011
6231531532311015
720312500010432
oct2722700456423
9633443210072
10200102010131
11779544059a1
123294591246b
1315b3c4b78ba
149983877119
1553123c473b
hex2e97025d13

200102010131 has 4 divisors (see below), whose sum is σ = 208802097552. Its totient is φ = 191401922712.

The previous prime is 200102010127. The next prime is 200102010151. The reversal of 200102010131 is 131010201002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 200102010131 - 22 = 200102010127 is a prime.

It is a super-2 number, since 2×2001020101312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200102010151) 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, 4350043676 + ... + 4350043721.

It is an arithmetic number, because the mean of its divisors is an integer number (52200524388).

Almost surely, 2200102010131 is an apocalyptic number.

200102010131 is a deficient number, since it is larger than the sum of its proper divisors (8700087421).

200102010131 is an equidigital number, since it uses as much as digits as its factorization.

200102010131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8700087420.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 200102010131 its reverse (131010201002), we get a palindrome (331112211133).

The spelling of 200102010131 in words is "two hundred billion, one hundred two million, ten thousand, one hundred thirty-one".

Divisors: 1 23 8700087397 200102010131