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311230230133101 = 31631102757718567
BaseRepresentation
bin100011011000011111110111…
…1010011110111100101101101
31111210222022121212012211022020
41012300333233103313211231
5311243144002403224401
63021533105514340353
7122361433144545306
oct10660775723674555
91453868555184266
10311230230133101
1190192aaa178004
122aaa660642a6b9
1310487b66ab7b56
1456bd8a2cc17ad
1525eac2c3c3d36
hex11b0fef4f796d

311230230133101 has 16 divisors (see below), whose sum is σ = 417557361345024. Its totient is φ = 206195190423984.

The previous prime is 311230230133099. The next prime is 311230230133127. The reversal of 311230230133101 is 101331032032113.

It is not a de Polignac number, because 311230230133101 - 21 = 311230230133099 is a prime.

It is a super-2 number, since 2×3112302301331012 (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311230230133181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23467081 + ... + 34251486.

It is an arithmetic number, because the mean of its divisors is an integer number (26097335084064).

Almost surely, 2311230230133101 is an apocalyptic number.

It is an amenable number.

311230230133101 is a deficient number, since it is larger than the sum of its proper divisors (106327131211923).

311230230133101 is a wasteful number, since it uses less digits than its factorization.

311230230133101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57729760.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 311230230133101 its reverse (101331032032113), we get a palindrome (412561262165214).

The spelling of 311230230133101 in words is "three hundred eleven trillion, two hundred thirty billion, two hundred thirty million, one hundred thirty-three thousand, one hundred one".

Divisors: 1 3 163 489 11027 33081 1797401 5392203 57718567 173155701 9408126421 28224379263 636462638309 1909387914927 103743410044367 311230230133101