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31002113203101 = 323444679244789
BaseRepresentation
bin1110000110010001111011…
…11100011101101110011101
311001202202212120111000122200
413003020331330131232131
513030414311434444401
6145534101343002113
76346554160152225
oct703107574355635
9131682776430580
1031002113203101
119972a16752797
123588500b99339
13143b643469411
14792720319085
1538b681d14686
hex1c323df1db9d

31002113203101 has 6 divisors (see below), whose sum is σ = 44780830182270. Its totient is φ = 20668075468728.

The previous prime is 31002113203099. The next prime is 31002113203123. The reversal of 31002113203101 is 10130231120013.

31002113203101 is a `hidden beast` number, since 3 + 10 + 0 + 21 + 1 + 320 + 310 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 30632572008900 + 369541194201 = 5534670^2 + 607899^2 .

It is not a de Polignac number, because 31002113203101 - 21 = 31002113203099 is a prime.

It is a super-2 number, since 2×310021132031012 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31002113203151) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1722339622386 + ... + 1722339622403.

It is an arithmetic number, because the mean of its divisors is an integer number (7463471697045).

Almost surely, 231002113203101 is an apocalyptic number.

It is an amenable number.

31002113203101 is a deficient number, since it is larger than the sum of its proper divisors (13778716979169).

31002113203101 is a wasteful number, since it uses less digits than its factorization.

31002113203101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3444679244795 (or 3444679244792 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 31002113203101 its reverse (10130231120013), we get a palindrome (41132344323114).

The spelling of 31002113203101 in words is "thirty-one trillion, two billion, one hundred thirteen million, two hundred three thousand, one hundred one".

Divisors: 1 3 9 3444679244789 10334037734367 31002113203101