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11101233031 = 729531031809
BaseRepresentation
bin10100101011010111…
…10101111110000111
31001122122221001211221
422111223311332013
5140213403424111
65033321541211
7542045631610
oct122553657607
931578831757
1011101233031
1147873a1759
122199944807
13107bbb0455
14774502c07
1544e8d9371
hex295af5f87

11101233031 has 16 divisors (see below), whose sum is σ = 13372257600. Its totient is φ = 9013874688.

The previous prime is 11101233007. The next prime is 11101233043. The reversal of 11101233031 is 13033210111.

It is not a de Polignac number, because 11101233031 - 231 = 8953749383 is a prime.

It is a super-2 number, since 2×111012330312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11101232996 and 11101233014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11101233071) 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, 505146 + ... + 526663.

It is an arithmetic number, because the mean of its divisors is an integer number (835766100).

Almost surely, 211101233031 is an apocalyptic number.

11101233031 is a deficient number, since it is larger than the sum of its proper divisors (2271024569).

11101233031 is a wasteful number, since it uses less digits than its factorization.

11101233031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031898.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 11101233031 its reverse (13033210111), we get a palindrome (24134443142).

The spelling of 11101233031 in words is "eleven billion, one hundred one million, two hundred thirty-three thousand, thirty-one".

Divisors: 1 7 29 53 203 371 1537 10759 1031809 7222663 29922461 54685877 209457227 382801139 1585890433 11101233031