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312012101023 = 710124369489
BaseRepresentation
bin1001000101001010101…
…11101101010110011111
31002211100122210222120121
410202211113231112133
520103000044213043
6355200354055411
731353644046130
oct4424527552637
91084318728517
10312012101023
11110361773617
125057827a567
132356563c3ac
141115c5cdc87
1581b201eded
hex48a55ed59f

312012101023 has 12 divisors (see below), whose sum is σ = 360150843760. Its totient is φ = 264790972800.

The previous prime is 312012101021. The next prime is 312012101041. The reversal of 312012101023 is 320101210213.

It is not a de Polignac number, because 312012101023 - 21 = 312012101021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312012100988 and 312012101006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312012101021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2113338 + ... + 2256151.

Almost surely, 2312012101023 is an apocalyptic number.

312012101023 is a deficient number, since it is larger than the sum of its proper divisors (48138742737).

312012101023 is an equidigital number, since it uses as much as digits as its factorization.

312012101023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4369698 (or 4369597 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 312012101023 its reverse (320101210213), we get a palindrome (632113311236).

The spelling of 312012101023 in words is "three hundred twelve billion, twelve million, one hundred one thousand, twenty-three".

Divisors: 1 7 101 707 10201 71407 4369489 30586423 441318389 3089228723 44573157289 312012101023