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31232113301 = 413891958249
BaseRepresentation
bin11101000101100101…
…000011101010010101
32222121121201202002002
4131011211003222111
51002430410111201
622203044325045
72153650403624
oct350545035225
988547652062
1031232113301
1112277793a94
1260776a3785
132c3972141c
141723d376bb
15c2bda976b
hex745943a95

31232113301 has 8 divisors (see below), whose sum is σ = 32076135000. Its totient is φ = 30392008960.

The previous prime is 31232113229. The next prime is 31232113361. The reversal of 31232113301 is 10331123213.

It can be written as a sum of positive squares in 4 ways, for example, as 34225 + 31232079076 = 185^2 + 176726^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 31232113301 - 234 = 14052244117 is a prime.

It is a super-2 number, since 2×312321133012 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31232113361) 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 7 ways as a sum of consecutive naturals, for example, 963176 + ... + 995073.

It is an arithmetic number, because the mean of its divisors is an integer number (4009516875).

Almost surely, 231232113301 is an apocalyptic number.

It is an amenable number.

31232113301 is a deficient number, since it is larger than the sum of its proper divisors (844021699).

31232113301 is a wasteful number, since it uses less digits than its factorization.

31232113301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1958679.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 31232113301 its reverse (10331123213), we get a palindrome (41563236514).

The spelling of 31232113301 in words is "thirty-one billion, two hundred thirty-two million, one hundred thirteen thousand, three hundred one".

Divisors: 1 41 389 15949 1958249 80288209 761758861 31232113301