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312020020011 = 37105331141061
BaseRepresentation
bin1001000101001011101…
…01111010101100101011
31002211101012201022101110
410202211311322230223
520103004111120021
6355201235521403
731354101260430
oct4424565725453
91084335638343
10312020020011
11110366192237
125057aa59263
132356718299b
141115d691b87
1581b2a86476
hex48a5d7ab2b

312020020011 has 16 divisors (see below), whose sum is σ = 475466962688. Its totient is φ = 178294197600.

The previous prime is 312020020009. The next prime is 312020020043. The reversal of 312020020011 is 110020020213.

It is not a de Polignac number, because 312020020011 - 21 = 312020020009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312020010011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2141421 + ... + 2282481.

It is an arithmetic number, because the mean of its divisors is an integer number (29716685168).

Almost surely, 2312020020011 is an apocalyptic number.

312020020011 is a deficient number, since it is larger than the sum of its proper divisors (163446942677).

312020020011 is a wasteful number, since it uses less digits than its factorization.

312020020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246402.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 312020020011 its reverse (110020020213), we get a palindrome (422040040224).

The spelling of 312020020011 in words is "three hundred twelve billion, twenty million, twenty thousand, eleven".

Divisors: 1 3 7 21 105331 141061 315993 423183 737317 987427 2211951 2962281 14858096191 44574288573 104006673337 312020020011