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31201101201 = 310400367067
BaseRepresentation
bin11101000011101110…
…110000010110010001
32222112110101011110210
4131003232300112101
51002344440214301
622200015514333
72153122661424
oct350356602621
988473334423
1031201101201
1112261232156
1260692289a9
132c3318387a
14171db839bb
15c292d0ad6
hex743bb0591

31201101201 has 4 divisors (see below), whose sum is σ = 41601468272. Its totient is φ = 20800734132.

The previous prime is 31201101193. The next prime is 31201101209. The reversal of 31201101201 is 10210110213.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (31201101193) and next prime (31201101209).

It is not a de Polignac number, because 31201101201 - 23 = 31201101193 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31201101209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5200183531 + ... + 5200183536.

It is an arithmetic number, because the mean of its divisors is an integer number (10400367068).

Almost surely, 231201101201 is an apocalyptic number.

It is an amenable number.

31201101201 is a deficient number, since it is larger than the sum of its proper divisors (10400367071).

31201101201 is a wasteful number, since it uses less digits than its factorization.

31201101201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10400367070.

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

Adding to 31201101201 its reverse (10210110213), we get a palindrome (41411211414).

The spelling of 31201101201 in words is "thirty-one billion, two hundred one million, one hundred one thousand, two hundred one".

Divisors: 1 3 10400367067 31201101201