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23020412031 = 33852607853
BaseRepresentation
bin10101011100000111…
…111001110001111111
32012102022222002122000
4111130013321301333
5334121211141111
614324143153343
71443316162611
oct253407716177
965368862560
1023020412031
119843471311
1245655a5853
13222b387ca6
1411854c2db1
158eaee2c56
hex55c1f9c7f

23020412031 has 8 divisors (see below), whose sum is σ = 34104314160. Its totient is φ = 15346941336.

The previous prime is 23020412029. The next prime is 23020412033. The reversal of 23020412031 is 13021402032.

23020412031 is a `hidden beast` number, since 230 + 20 + 412 + 0 + 3 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (23020412029) and next prime (23020412033).

It is not a de Polignac number, because 23020412031 - 21 = 23020412029 is a prime.

It is a super-2 number, since 2×230204120312 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23020411995 and 23020412013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23020412033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 426303900 + ... + 426303953.

It is an arithmetic number, because the mean of its divisors is an integer number (4263039270).

Almost surely, 223020412031 is an apocalyptic number.

23020412031 is a deficient number, since it is larger than the sum of its proper divisors (11083902129).

23020412031 is an equidigital number, since it uses as much as digits as its factorization.

23020412031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852607862 (or 852607856 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 23020412031 its reverse (13021402032), we get a palindrome (36041814063).

Subtracting from 23020412031 its reverse (13021402032), we obtain a palindrome (9999009999).

The spelling of 23020412031 in words is "twenty-three billion, twenty million, four hundred twelve thousand, thirty-one".

Divisors: 1 3 9 27 852607853 2557823559 7673470677 23020412031